Journey to the West
Third Part

The third and longest section of the work is chapters 13–99, an episodic adventure story in which Tang Sanzang sets out to bring back Buddhist scriptures from Leiyin Temple on Vulture Peak in India, but encounters various evils along the way. The section is set in the sparsely populated lands along the Silk Road between China and India. The geography described in the book is, however, almost entirely fantasy; once Tang Sanzang departs Chang'an, the Tang capital, and crosses the frontier (somewhere in Gansu province), he finds himself in a wilderness of deep gorges and tall mountains, inhabited by demons and animal spirits who regard him as a potential meal (since his flesh was believed to give immortality to whoever ate it), with the occasional hidden monastery or royal city-state amidst the harsh setting.

Episodes consist of 1–4 chapters and usually involve Tang Sanzang being captured and having his life threatened while his disciples try to find an ingenious (and often violent) way of liberating him. Although some of Tang Sanzang's predicaments are political and involve ordinary human beings, they more frequently consist of run-ins with various demons, many of whom turn out to be earthly manifestations of heavenly beings (whose sins will be negated by eating the flesh of Tang Sanzang) or animal-spirits with enough Taoist spiritual merit to assume semi-human forms.

Chapters 13–22 do not follow this structure precisely, as they introduce Tang Sanzang's disciples, who, inspired or goaded by Guanyin, meet and agree to serve him along the way in order to atone for their sins in their past lives.

Chapter 22, where Sha Wujing is introduced, also provides a geographical boundary, as the river that the travelers cross brings them into a new " continent." Chapters 23–86 take place in the wilderness, and consist of 24 episodes of varying length, each characterized by a different magical monster or evil magician. There are impassibly wide rivers, flaming mountains, a kingdom with an all-female population, a lair of seductive spider spirits, and many other scenarios. Throughout the journey, the four disciples have to fend off attacks on their master and teacher Tang Sanzang from various monsters and calamities.

It is strongly suggested that most of these calamities are engineered by fate and/or the Buddha, as, while the monsters who attack are vast in power and many in number, no real harm ever comes to the four travelers. Some of the monsters turn out to be escaped celestial beasts belonging to bodhisattvas or Taoist sages and deities. Towards the end of the book, there is a scene where the Buddha commands the fulfillment of the last disaster, because Tang Sanzang is one short of the 81 tribulations required before attaining Buddhahood.

In chapter 87, Tang Sanzang finally reaches the borderlands of India, and chapters 87–99 present magical adventures in a somewhat more mundane setting. At length, after a pilgrimage said to have taken fourteen years (the text actually only provides evidence for nine of those years, but presumably there was room to add additional episodes) they arrive at the half-real, half-legendary destination of Vulture Peak, where, in a scene simultaneously mystical and comic, Tang Sanzang receives the scriptures from the living Buddha.
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