觀無量壽佛經義疏 2.42

2.42

「『今向世尊五體投地求哀懺悔，唯願佛日教我觀於清淨業處。』」頭及四肢為五體，五處皆圓亦名五輪。著地，禮之重也。由有宿罪故受此苦，今欲厭離故須求悔。梵云懺摩，此翻悔往。今言懺悔，華梵並舉。有云：懺即斷後，悔是恥前。如來說法破障除疑，如日照世，故云佛日。極樂依正莫非主伴淨業共成，故名清淨業處。據此韋提正求觀法，故云教我觀也。

"'Now, casting the five limbs to the ground before the World-Honoured One, I beseech your compassion and repent; I only pray that the Sun of the Buddha will teach me how to contemplate a place of pure karma.'" The head and four limbs are the five limbs; since the five places are all round, they are also called the five wheels. Touching the ground is the most solemn of reverences. It is because of past sins that one experiences this suffering; now wishing to feel revulsion and abandon it, one must seek repentance. In Sanskrit it is kṣama, translated here as repenting past [wrongs]. Saying "chanhui" here presents both Chinese and Sanskrit together. Some say: chan means severing what follows, and hui means feeling shame for what came before. The Tathāgata's preaching of the Dharma breaks through obstacles and dispels doubts, like the sun illuminating the world, hence he is called the Sun of the Buddha. The environment and inhabitants of Sukhāvatī are all jointly formed by the pure karma of the principal and accompanying [beings], hence it is called a "place of pure karma." According to this, Vaidehī was directly seeking the contemplation method, hence she said, "teach me how to contemplate." Second, the main body of the sūtra.