Answer:
The promotion of Buddhism by the Yamato rulers in Japan served to bolster their power and authority in several ways. First, it helped to unite the various regional factions and clans under a common cultural and religious identity. By embracing Buddhism, the Yamato rulers could present themselves as cultural leaders and patrons of the arts, which helped to increase their prestige and influence.
Additionally, Buddhism provided a philosophical and moral framework that helped to support the rule of the Yamato dynasty. The Buddhist belief in the cyclical nature of life and the idea of reincarnation provided a basis for the idea of dynastic rule, as the Yamato rulers were seen as possessing a divine mandate to rule based on their good deeds in past lives.
Moreover, the promotion of Buddhism allowed the Yamato rulers to control the religious institutions and spread their own interpretations of Buddhist teachings, further solidifying their power and authority. Additionally, they used Buddhism as a means of exerting political control over the conquered territories, by using Buddhist institutions and networks to enforce their rule and maintain social order.
In this way, the promotion of Buddhism helped to bolster the power and authority of the Yamato rulers in Japan, making it a crucial aspect of their rule.