[Why] Society since the late Han had been long ravaged by war, and elite and common alike sought new spiritual consolation. The opened Silk Road provided the physical conduit and cultural bridge for foreign religion to travel east from the Western Regions. [What] Kasyapa Matanga and Dharmaratna arrived on the white horse bearing scriptures at Luoyang, and the court built the White Horse Temple in their honor. From Wei-Jin onward Kumarajiva translated over eight hundred volumes at Chang'an, Bodhidharma faced the wall at Mount Song, and Northern and Southern Dynasties royals converted in succession. [Who] Kumarajiva was the Western Regions master who founded the standard for Chinese Buddhist scriptural translation. Hui Yuan of the Eastern Jin and Emperor Wu of Liang Xiao Yan were core figures who advanced the sinicization of Buddhism and royal patronage. [How] Buddhism's eastward spread transformed the spiritual map of Huaxia, standing alongside Confucianism and Daoism to form the tripartite three-teachings order. It deeply shaped medieval art, literature, philosophy, and daily life and laid the spiritual foundation of the East Asian Buddhist civilizational sphere.
Why
The historic event of Buddhism Spreading East represents a key developmental peak of the Huaxia dynastic system. The great spiritual transformation that reshaped Huaxia into the three-teachings order. By establishing this moral or administrative benchmark, it continues to shape the structural and philosophical fabric of ancient Chinese statecraft.