釋禪波羅蜜次第法門 3.80

3.80

三、明無緣慈發者，亦於欲界、未到定心中，忽然覺悟一切諸法非有非無，不見二邊，所謂若眾生非眾生，若法非法，皆不可得，則無所緣，以無緣故，顛倒想息，寂然安樂，心與慈定相應，等觀一切，同此安樂，無瞋無恨，無怨無惱，廣大無量，遍滿十方，是為無緣慈善根發相。或發無緣悲定，乃至喜、捨亦如是。

3. Explaining the arising of unconditioned benevolence: within a concentrated mind in the desire realm or the anāgamya stage, one suddenly awakens to the fact that all dharmas are neither existent nor nonexistent, seeing neither of the two extremes. That is, whether sentient beings or non-sentient-beings, whether dharmas or non-dharmas, all are ungraspable; thus there is nothing to be conditioned. Because it is unconditioned, inverted thoughts cease, and one is tranquil, serene, and joyful. The mind corresponds with the absorption of benevolence, equally contemplating all as sharing in this serenity and joy, without anger or resentment, without enmity or vexation, vast and immeasurable, pervading the ten directions. These are the signs of the arising of the wholesome roots of unconditioned benevolence. Or the absorption of unconditioned compassion arises, and similarly up to joy and equanimity.