釋禪波羅蜜次第法門 6.36

6.36

廣大無量者，一心分別，有二種名：如慈相緣見一方為廣，四方為大，緣四維及上下為無量。復次，破瞋恨心名為廣，破怨心名為大，破惱心名為無量。慈緣親人為廣，慈緣中人為大，慈緣怨人得福多，故名無量。復次，為狹緣故，名為廣。為小緣故，名為大。為有量緣，故名無量。

Regarding "vast and immeasurable": in the distinction of single-mindedness, there are two designations. When benevolence's condition observes one direction, it is vast; four directions, it is great; observing the four intermediate directions and above and below, it is immeasurable. Furthermore, destroying the mind of anger and malice is called vast; destroying the mind of enmity is called great; destroying the mind of affliction is called immeasurable. Benevolence conditioned upon dear persons is vast; benevolence conditioned upon neutral persons is great; benevolence conditioned upon hostile persons obtains much merit, and is thus called immeasurable. Furthermore, because of narrow conditions, it is called vast. Because of small conditions, it is called great. Because of limited conditions, it is called immeasurable.