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Tang Dynasty Revolution and Poetry: Bai Juyi’s “Construction” of Yang Guifei

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There are pivotal moments in world history when violence results in sweeping political and cultural change. For the West, two such moments are the fall of the Bastille and the fall of Troy. For East Asia, the destruction of the Chinese capital city, Chang’an, in 755 during the Tang Dynasty (618–907 CE), marked the end of a golden age. The causes of the French Revolution or the attack on Troy or this Chinese catastrophe are complex, and it may be human nature to understand the causes by creating stories with human scapegoats such as Marie Antoinette in Paris or Helen of Troy. The Tang Dynasty disaster was blamed on General An Lushan, even though military chaos lasted between 755 and 764, and An Lushan died in 757. Even more capriciously, the “An Lushan Rebellion” was also blamed on a woman, Emperor Xuanzong’s Prized Consort, Yang Guifei. While the early Tang Dynasty saw a rise in status for women, foreigners, and Buddhists, after 755 attitudes hardened against these groups; it is an open question of the twenty-first century whether attitudes will change again toward gender, nationality, and religion.

Lady Yang had her own Homer, the poet Bai Juyi (Po Chu-i, 772–846). Teachers can use his popular poem “Song of Lasting Pain” (807) to understand how Tang Dynasty history has been constructed and remembered in East Asia. Secondary and college teachers might want to teach the poem because of its beautiful language and literary influence in China and Japan since the ninth century. As a lens on history, the poem allows readers to see Bai Juyi’s life and times, and how the poet’s interests distort or reflect history. One can interpret the poem emphasizing Confucian or Daoist or Buddhist beliefs and practices. Analysis of this primary text also provides a good understanding of how these three religions interacted and blended in the Tang Dynasty. Students can decide whether the poem exonerates Yang Guifei.

To help cement alliances south to Tibet, west to Kashgar, north to Mongolia, and east toward Korea, emperor Xuanzong brought to court women from powerful families.

THE HISTORICAL BACKGROUND

Edwin G. Pulleyblank’s 1955 study remains the definitive analysis of the array of political and economic factors that caused widespread discontent.1 For almost a thousand years before the 755 rebellion, Chinese power with its capital Chang’an (modern day Xi’an) had expanded the territory under its control. By the time of Emperor Xuanzong (685-762), the Emperor was responsible for a vast bureaucracy selected by an examination system. The Silk Road trade that enriched the capital city called for large public outlay of funds. The Chinese realm was connected by public roads and many great walls, and it was protected by a conscripted military growing to the hundreds of thousands, and paid for by ever-increasing taxes. To help cement alliances south to Tibet, west to Kashgar, north to Mongolia, and east toward Korea, Emperor Xuanzong brought to court women from powerful families.

In the 750s, new Arab powers successfully challenged the Chinese in Central Asia, and the need for more troops grew. Then a leader patronized by the Emperor rebelled. This was An Lushan, a general whose father was a Sogdian and whose mother was Turkic. During the Rebellion, soldiers swept into the capital city and Emperor Xuanzong fled. Between 755 and 764, perhaps as many as thirty-five million people died. This is comparable to the worldwide deaths of World War I from civil disruption and war.

THE PRIZED CONSORT YANG GUIFEI

When the Emperor fled the capital, in his retinue rode the lovely Yang Guifei (see Figure 1). His own men held her responsible for the rebellion and refused to go further until she was throttled. Emperor Xuanzong did not act to prevent her execution. Who was she? Raised in one of the royal family’s palaces in Chang’an, once she had been seen by Emperor Xuanzong at age twenty-seven, she quickly rose in the ranks of his women to the top position short of Empress. The translation of “Prized Consort” for “Guifei” is both literal and in spirit more suitable to convey her powerful status than the word “concubine.” For eleven years, between 745 and 756 when she died at the age of thirty-eight, Emperor Xuanzong was so devoted to Lady Yang that he was said to neglect three thousand other women whose families sought his favor.

Besides political and personal jealousy, there were two other important reasons why Lady Yang was blamed for the rebellion. First, her elder cousin, Yang Zuozhong, rose to be a powerful Chief Minister, and was given responsibility of Sichuan Province to the southwest. Lady Yang intervened at one point with Emperor Xuanzong to keep her relative in power. This nepotism was blamed for administrative incompetence and both cousins—Chief Minister Yang Zuozhong and Lady Yang—were killed by the Emperor’s own forces as they abandoned the capital.

A second reason, however, involves An Lushan. It seems certain that An Lushan and Lady Yang Guifei danced “the whirl” before the Emperor. The dance came from Sogdiana, the area west of Chinese control in current day Uzbekistan, and An Lushan and Lady Yang were not only associated with foreign power, but with sexual impropriety, with the implication that Lady Yang had betrayed Emperor Xuanzong in many ways. This conclusion was challenged, however, by the poet Bai Juyi, who understood the true meaning of this whirling dance.

BAI JUYI NARRATIVE 807 POEM: “SONG OF LASTING PAIN”

The title’s key words have been translated as “Everlasting Sorrow” or “Regret,” but the word “Pain,” used by a foremost scholar of Chinese literature, Stephen Owen, conveys the intense feeling when loss of a loved one is compounded by responsibility and guilt. After the first part of the poem’s story ends with Lady Yang’s death, the second part focuses on the Emperor’s grief. The third part features a supernatural being finding Yang Guifei in an afterlife. Bai Juyi’s metaphors as Lady Yang remembers her love for the Emperor are so lyrical that they establish Lady Yang’s innocence. How could a woman so in love with Xuanzong possibly dally with An Lushan and conspire against the Emperor and his Empire?

For world literature teachers, the importance of the 807 poem lies in its literary influence. In Japan, for instance, Murasaki Shikibu (c. 1000) quotes Bai Juyi’s poem extensively in the first chapter of The Tale of Genji.2 Much later, the great Noh playwright Zeami (c. 1400) also frequently alludes to Bai Juyi’s poetry.3 The three-part story of Bai Juyi’s poem resembles the structure of Noh drama: exposition; loss and haunting regret; and finally, resolution and forgiveness through revelation of a spirit (see Figure 2).

THE POET: BAI JUYI

Bai Juyi was born about twenty years after Yang Guifei died. From the Tang Dynasty, three poets stand out: Du Fu (Tu Fu 712–770) has a position in Chinese culture of highest respect based on his exemplary Confucian ethics; Li Bai (Li Po 701–762) balances Du Fu; generally considered Daoist, he is dearer to Chinese people’s hearts. Bai Juyi is considered the third prominent Tang poet. Yet he was so highly regarded in Japan that Zeami featured him in a Noh play where his literary influence threatens to dominate Japanese culture; it takes a Shinto god to blow Bai Juyi back to China.4

The “Song of Lasting Pain” is available in multiple English translations, and in his anthology, Stephen Owen provides a context by printing related poetry and prose about Yang Guifei.5 Bai Juyi’s life is even more of an open book, in the form of a biography published in 1949 by Arthur Waley (The Life and Times of Po Chu-i: 772–846).6 Literary work and biography together provide a lively, quirky, and fascinating entry to a very significant part of Chinese history and culture. For a literature teacher, one often teaches history to understand a poem, but here we will also seek to understand the poet, Bai Juyi, to see how his poem interpreted and shaped Chinese history.

BAI JUYI’S CONFUCIAN BACKGROUND

Bai Juyi was by education and early career a distinguished member of the Confucian official-scholar-literati class. He earned a rare “First Class” in the Confucian state examinations of the year 800. Moreover, his recorded governmental actions, and hundreds of his poems, demonstrate anger and diligent action against government corruption. Bai Juyi’s patrons in Chang’an were the highest Chief Ministers to the emperors who succeeded Xuanzong. Bai Juyi’s constant subject matter is loss; he complains so much about only briefly being governor of Suzhou and Hangzhou, that one overlooks that he was appointed to govern two of the most powerful cultural and economic cities of the Silk Road. In Suzhou today, he is referred to as “Lord Bai,” the builder of canals and great benefactor of the populace.

Confucian classics underlying the Tang Dynasty examination system and governing bureaucracy expound an ethical system based upon a simple lifestyle and concern for a society in which the Emperor was held accountable for the welfare of all. In contrast, the court of Emperor Xuanzong and Yang Guifei supported a luxurious, extravagant lifestyle that was injurious to the Empire. The disparity between ideals and reality could have led Bai Juyi to write a poem reinforcing traditional Confucian advice to not let women draw near and become “immodest.”7 Indeed, in a preface to his poems Bai Juyi wrote, “I wish those who read them to understand them easily; the wording is straightforward and incisive, as I wish those who hear them to absorb deeply their admonitions.”8

If warning is the key concept, the poem and account both offer a variety of temptations to eschew—women, sensuality, sleeping late, nepotism, trust, and general over-indulgence.

Nevertheless, a comparison to a prose “Account,” published by Bai’s friend Chen Hong to accompany “Song of Lasting Pain,” shows that Bai Juyi gives a much more positive report of Yang Guifei and the Emperor than does Chen Hong. Chen begins his “account” with “a world at peace” and “no problems in the land within the four circling seas”; this historically false idyllic scene is spoiled when Yang Guifei gains power by assuming a “seductively coy manner . . . suiting herself to His Majesty’s wishes by thousands of fetching ways.”9 In contrast, Bai Juyi begins his poem with the Emperor longing for beauty and finding it when Yang Guifei turns round with a “smiling glance”; her natural grace, with “Tresses like a cloud, face like a flower,” contrasts with the “powder and paint” of the Emperor’s other court women.

If warning is the key concept, the poem and account both offer a variety of temptations to eschew—women, sensuality, sleeping late, nepotism, trust, and general over-indulgence. Only the sweetness and lightness of Bai’s adjectives, the elegance of Yang Guifei rising in “helplessness so charming” glowing from her bath, the beauty of phrases that sway to her steps along with the gold pins in her hair—only the entire craft of the poem—war with the censorious frame. Superficial didacticism appears at odds with a deeper meaning of the poem.

DAOISM

In Bai Juyi’s “Song of Lasting Pain,” the third section begins when a personage Paul W. Kroll translates as a “Daoist adept” visits Emperor Xuanxong and offers to find the spirit of Yang Guifei. Kroll identifies the island where Yang Guifei is found after death as Penglai, the Daoist island of immortality. Here Yang Guifei is called “T’ai-chen” and her otherworldly maid Shuang-ch’eng, Daoist names.10

Why would Bai Juyi want his poem to appear Daoist? I suggest that Bai Juyi was making this a specifically Chinese story and deliberately mixed Daoist references with images that have a long cultural history in China. There have been Chinese references to the immortals’ island of Penglai since the fourth century CE and to the Weaver Maid’s love story since 1500 BCE. A kingfisher had been the symbol of beautiful and vulnerable Chinese women for hundreds of years. Bai Juyi’s famous image of two trees mingling their branches “leaf entwined with leaf ” combined with a pair of flying birds can be found in the Han Dynasty “Southeast the Peacock Flies.”11

Through these references, the experience of lost love no longer belongs to a specific Emperor and his exotic consort accused of causing untold death and destruction; they become every anguished, sincere, yearning lover of any time period. While Bai Juyi’s Daoist celestial maids are forgettable, his secular images of a rain swept blossom, un-swept autumn leaves, two birds sharing one wing, and a hairpin wrenched apart have become an integral part of Chinese culture. Chinese tourists now flock to the places such as Hua-qing pools outside present-day Xi’an and Mount Li because they are mentioned in this poem.

A judgment that the Daoist elements are superficial is reinforced by another Bai Juyi poem that Waley quotes: “Traveller, I have studied the Empty Gate [Buddhism];/I am no disciple of the [Daoist] Fairies. / The story you have just told / Is nothing but an idle tale. . . .When I leave the earth it will be to go / To the Heaven of Bliss Fulfilled. [The Buddhist Paradise of Maitreya].”12 It seems probable, therefore, that the Daoist references are not part of a belief system that attracted the poet, but of a calculated defense of Yang Guifei by Bai Juyi.

It is time to consider why, if Bai Juyi’s poem is only superficially Confucian or Daoist, he told the story and took care to put it in easily understandable language. Suzanne Cahill, a historian of medieval China, writes about the interrelationships between the Daoist and Buddhist systems when she discusses Bai Juyi,13 and suggests that images of paradise are coming from Buddhist and Hindu ideologies.14 To analyze the poem “Song of Lasting Pain” and its “construction” of Yang Guifei, we must turn to Tang Dynasty Buddhism.

BAI JUYI AND BUDDHISM

A fascinating aspect of Bai Juyi’s biography concerns his intense study of Buddhism after 806. Buddhism is the grand story of the Tang Dynasty. The early Tang Emperor Taizong allowed the Buddhist Monk Xuanzang to go on his epic journey to India; Taizong greeted the monk on his return and supported his translation of Sanskrit sutras and narratives into Chinese. Empress Wu, Xuanxong’s grandmother, was a devout Buddhist. By the time of Emperor Xuanzong and Yang Guifei, many Buddhist Indian monks were visiting the Chinese capital; in 807–808, when Bai Juyi wrote “Song of Lasting Pain” Japanese Buddhist monks also came to Chang’an, including the famous Kukai, who brought back to Japan a syncretic form of Buddhism sympathetic to women.

The reception of Bai Juyi’s poetry in Japan demonstrates that his interest in Buddhism was linked to the imperial court. In 838, his collected works were presented to the Japanese Emperor Ninmyo; in 847 a Japanese Buddhist “pilgrim” Jikaku brought back to Japan Bai Juyi’s Works and a separate copy of “Song of Lasting Pain.” Approximately one hundred and fifty years after Bai Juyi’s death in 846, Murasaki Shikibu read his poems to the Empress to whom she was lady-in-waiting.

While Buddhism has remained a religion of the Japanese court, in China after the 755 Rebellion, Buddhism began to be blamed for political misfortune. The Tang court in exile used destructive Buddhist Uigher forces to take back the capital. Later, Buddhists from a powerful Tibetan kingdom ruled from Chang’an for a brief time. By Bai Juyi’s lifetime, the Buddhist kingdom of Nan-Chao ruled areas that had been administered from Chang’an, including Sichuan where Yang Guifei’s cousin Yang Gaozhong had been in charge.15 Waley gives much evidence that the Yang extended family was Buddhist.

Despite growing hostility toward Buddhism, to the end of the Tang Dynasty in 907, Emperors conducted elaborate Buddhist rituals at court. In the center of the controversy over Yang Guifei’s role in the An Lushan Rebellion is her whirling dance. In “Song of Lasting Pain,” Bai Juyi refers to her dance “Coats of Feathers, Rainbow Skirts” shaken apart by the kettledrums of war, and again when her sleeves rise and billow as her spirit appears in the island of immortals. The historical meaning of this dance is central to understanding both Yang Guifei and Bai Juyi’s interest in her. Masako Nakagawa Graham records that Japanese scholars traced the melody from India, northwest to Sogdiana, and then east along the Silk Roads to Chang’an.16 He Zhang has suggested that the dance is part of Zoroastrian funerary rituals or widespread shamanistic practices or later Sufi Muslim whirling dervishes.17 Insight into the dance can be gained by reference to all these traditions, but much evidence exists that An Lushan and Yang Guifei were dancing before Emperor Xuanzong as part of elaborate Buddhist rituals at court.

YANG GUIFEI AND TANG DYNASTY BUDDHISM

Murals depicting a whirling dance in the Tang Dynasty court are found on the walls of eighth century Dunhuang Buddhist caves. According to Chinese scholar Duan Wenjie, the murals are depictions of paradise with a Buddha in the center, a bodhisattva on either side and music and dance in the front.18 The setting shows “magnificent palaces and pavilions where deities gather and watch performances of music and dance.”19 As Emperor Xuanzong produced more and more lavish displays of dance and music, with himself as central viewer, he was placing himself in the position of a Buddha incarnate. The female dancers represented “apsaras,” celestial beings who fly.

The Chinese have long recognized the association between the Buddhist murals in Dunhuang and Xuanzong’s court: Duan Wenjie quotes an “eminent monk-scholar of the Early Tang”: “No wonder people these days compliment the palace women as Bodhisattvas.”20 When looking at the Buddhist Dunhuang mural, an early Chinese scholar remarked, “This is the Tang style. It is often said that Lady Yang had a delicate frame in full bloom.”21

After her death, Yang Guifei was accused of intending to entrance Emperor Xuanzong literally, and to distract him from his duties protecting the Empire. Yuan Chen (779–831) wrote a poem beginning: “The Turks were planning strife, / The Turks on purpose sent a girl / skilled in dancing the Whirl . . . a beguiling Turk came suddenly / to the Palace of Lasting Life”; “real truth” was that the “universe” could be changed through a “rainbow dance.”22 According to Victor Mair, “whirling dancers were presented at court as tribute from Sogdiana in 718, 719, 727, and 729.”23 As we have said, An Lushan had a Sogdian father and Turkic mother, and Chen’s “beguiling Turk” was An Lushan. There is a mural from a tomb built during An Lushan’s lifetime that shows a non-Chinese minority figure in a whirling dance pivoting on a rug, and today in China, this picture is frequently used to represent An Lushan (see Figure 3). Dunhuang still produces Central Asian rugs with Buddhist mandala designs. Sogdians during the Tang Dynasty included literate merchants who had sponsored translations of Buddhist texts from Chinese into their own language, and An Lushan’s family could easily have been Buddhist in the century before his group converted to Islam.

BAI JUYI, YANG GUIFEI, AND BUDDHISM

Waley states that Bai Juyi actually saw a performance of the dance of “Rainbow Skirts” at court in 808–809.24 Bai Juyi later began to try to recreate the dance. As Governor of Hangzhou, 822–823, he gathered his own troupe of courtesan-musicians to perform “Rainbow Skirts, Cloak of Feathers” and again in Suzhou; Waley considered him obsessed with this particular music and dance (see Figure 4).

Significantly for us, Bai Juyi seems to have been introduced to Buddhism by a pair of Yang male family members. He married a member of the large Yang clan shortly after publishing “Song of Lasting Pain.” The poem could be considered a love poem, yet it is improbable that Bai Juyi knew his wife before marriage; Waley indicates that Bai Juyi seemed more interested in the rocks that the Yang brothers gave him for his Buddhist garden than in the Yang woman after they married. When Bai Juyi was Governor of Suzhou in 825, he was a member of a society of those who aspired to be reborn in the Buddhist Vairocana’s Paradise.25 He chose to be buried near the Vairocana statue erected by Empress Wu (see Figure 5); his tomb is on Xiangshan hill where he spent his last years in convivial Buddhist retreat.

CONCLUSION

In terms of pedagogy, the conflicting views of Yang Guifei are seen most clearly in light of the three religious ideologies of the Tang Dynasty: Confucianism, Daoism, and Buddhism. The poem “Song of Lasting Pain” can serve as a key puzzling text, motivating students to gain understanding of the three traditions. The poem serves to explain religious syncretism and how the three strains are much more intertwined in Chinese experience than in most textbooks introducing “Chinese culture and civilization.”

This review of the interplay of these ideologies in “Song of Lasting Pain” leads to the following conclusions: First, the Confucian criticism of lavish palace life is more aimed at the Emperor than Yang Guifei; Yang Guifei is given an opportunity to attest to true love for the repentant Emperor. Second, the Daoist references may have been an attempt not only to rehabilitate the memory of Yang Guifei, but also to establish her as a popular Chinese semi-deity blending Daoist and Buddhist beliefs. If this was Bai Juyi’s goal, he did not succeed in the long term—in China Lady Yang became a sensual character in secular plays and performances rather than a religious figure. Third and most important, Bai Juyi was genuinely interested in the Buddhist connections between ritual performance of music and dance and its effect on sustaining the Empire and on human well-being. The poem “Song of Lasting Pain” develops a conception of divine monarchy quite different from the Chinese “Mandate of Heaven” and closer to the Hindu theocracy of the Ramayana exemplified by the romantic pair Rama and Sita who are gods incarnate.

Asian countries surrounding China, such as Java, then Cambodia and later Thailand, became “Hinduized states” in the ninth and successive centuries. Dancing “apsaras” decorate the walls of Buddhist temples in those countries, both in ruins and in contemporary palaces of kings. On the other hand, China—with the destruction of the Tang Dynasty palace in Xi’an during the An Lushan Rebellion, then the destruction of Buddhist temples and monasteries in the 840s, and the fall of the Tang Dynasty in 907—definitively rejected Hindu/Buddhist theocracy and the rituals which spectacularly failed to produce harmony in the Empire.

What insight does the poem “Song of Lasting Pain” give to our question of the relationship of the present and the past? “Song of Lasting Pain” should be considered seriously in the classroom, not only as a very popular Chinese poem about human love and political rebellion, but also as a religious poem reflecting a syncretic type of ninth century Buddhism. Bai Juyi was exploring a type of religious mysticism that sought to overcome such divisions as the present and the past.

The title of Yang Guifei’s dance “Coats of Feathers, Rainbow Skirts” contains metaphors: feathers are separate, yet become one cloak; many colors unite in one rainbow. The last lines of the poem present similar metaphors in the union between lovers: man and woman are “birds that fly on shared wing,” “branches that twine together.” Together, they enter the “Palace of Lasting Life”; Bai Juyi writes: “Heaven lasts, the Earth endures.” In the mysticism of whirling dervishes, song, music, dancer and dance, become one. Bai Juyi ends his poem “this pain of ours will continue / and never finally end.” In watching the revolving dance of Noh in Japan, or the whirling dance of Sufi dervishes in Istanbul, or in reading the poem with Yang Guifei’s sleeves billowing in the whirling wind wherever and whenever we might be, we transcend time and place. Unity and life replace separation and loss.

 

 

NOTES


1. E. G. Pulleyblank, The Background of the Rebellion of An Lu-shan (London: Oxford University Press, 1955).

2. Murasaki Shikibu, The Tale of Genji. Trans. Royall Tyler (New York: Viking, 2001).

3. Emanuel Pastreich, “The Reception of Chinese Literature in Japan,” The Columbia History of Chinese Literature, ed. Victor H. Mair (New York: Columbia University Press, 2001), 1089.

4. Zeami’s play Haku Rakuten appears in the second edition of The Norton Anthology of World Literature, 100–1500 (New York: Norton, 2002), 2356–2361.

5. Stephen Owen, ed. and trans., “Interlude: Xuanzong and Yang the Prized Consort,” An Anthology of Chinese Literature (New York: Norton, 1996), 441–457. Unless noted otherwise, my quotations from “Song of Lasting Pain” use Stephen Owen’s translation, 442–447.

6. Arthur Waley, The Life and Times of Po Chu-i: 772–846 (New York: MacMillan, 1949).

7. Roger T. Ames and Henry Rosemont, Jr. trans. and ed., The Analects of Confucius: A Philosophical Translation, 17.24 (New York: Ballantine Books, 1999), 211.

8. J. Thomas Rimer and Jonathan Chaves, trans., “Chinese Poets in the Waken roei shu,” Japanese and Chinese Poems to Sing: The Wakan roei shu (New York: Columbia University Press, 1997), 15–28.

9. Owen, 441–457.

10. “The Song of Lasting Regret,” translated with extensive footnotes by Paul W. Kroll in Victor H. Mair, ed., The Columbia Anthology of Traditional Chinese Literature (New York: Columbia University Press, 1994), 270–278.

11. Burton Watson, trans. and ed., The Columbia Book of Chinese Poetry: From Early Times to the Thirteenth Century (New York: Columbia University Press, 1984) 82–92.

12 . Waley, 198.

13. Suzanne E. Cahill, The Queen Mother of the West in Medieval China: Transcendence & Divine Passion (Stanford: Stanford University Press, 1993), 197, 199–200.

14. Ibid, 95.

15. Charles Backus, The Nan-chao Kingdom and T’ang China’s Southwestern Frontier (Cambridge: Cambridge University Press, 1981), 72–77.

16. Masako Nakagawa Graham, The Yang Kuei-Fei Legend in Japanese Literature, Foreword by Victor Mair (Lewiston: Mellen, 1998).

17. He Zhang, “A Study of the Sogdian Whirl Dance and Shaman’s Performance,” Asian Studies Development Program National Conference, March 2009.

18. Tan Chung, ed., Dunhuang Art through the Eyes of Duan Wenjie (New Delhi: Abhinav, 1994), 152.

19. Ibid, 154.

20. Ibid, 151.

21. Ibid, 150.

22. Owen, 455–456.

23. Mair, Anthology, 485.

24. Waley, 154.

25. Ibid, 162–167.

SELECTED BIBLIOGRAPHY


Beauchamp, Fay. “East Asian Attitudes toward Court Women: The Legend of Yang Guifei.” Expanding East Asia Project Web site, Columbia University, http://www.exeas.org, 2004.

Leiter, Samuel, ed., Japanese Theater in the World (New York: Japan Society, 1997).

Mann, Susan L. “Myths of Asian Womanhood.” Journal of Asian Studies, 59.4, (2000) 835–862.

Zhang, Hongyiu. A Collection of China’s Tang Dynasty Frescoes (Zhongguo Tang mu bihua ji) (Linghan: Linghan Art Publishing House, 1995).