金光明經文句記 4.167

4.167

二、示進修明力大。初修不淨，進入八背及大不淨。所言大者，但觀自他正報，名小不淨，即九想觀。若兼觀依報，名大不淨，所謂舍如丘墓、錢如死蛇、羹如屎汁、飯如白蟲、衣如臭皮、山如肉聚、池如膿河、園林如枯骨、江海如注穢，名大不淨。亦名大背捨，背謂背是淨潔五欲，捨謂捨是著心。

Second, indicating advanced cultivation to clarify the great power. Initially cultivating impurity, one advances into the eight liberations (aṣṭa-vimokṣa) and the major impurity. What is called 'major': merely contemplating the direct retribution of oneself and others is called minor impurity, which is the contemplation of the nine visualizations. If one also contemplates the dependent retribution, it is called major impurity: namely, houses are like grave mounds, coins are like dead snakes, soup is like liquid excrement, rice is like white maggots, robes are like foul hide, mountains are like heaps of flesh, pools are like rivers of pus, parks and forests are like dried bones, and rivers and oceans are like flowing filth—this is called major impurity. It is also called major liberation (vimokṣa): 'turning away' (vi-) means turning away from pure and clean five desires; 'renouncing' (-mokṣa) means renouncing this attached mind.