釋禪波羅蜜次第法門 9.51

9.51

次第修行入道者，行者欲求解脫煩惱之病，先當念佛如醫王，念法如良藥，念僧如瞻病，念戒如禁忌飲食，念捨如將養，念天如身病少差，念阿那波那使發禪定，念死即悟無常四諦。若三界病盡，即得聖道。

Regarding entering the path through sequential cultivation: if the practitioner wishes to seek liberation from the illness of afflictions, he should first recollect the Buddha as a king of physicians, recollect the Dharma as good medicine, recollect the Saṅgha as attendants nursing the sick, recollect the precepts as prohibitions on food and drink, recollect renunciation as recuperative nourishment, recollect the devas as the bodily illness being slightly relieved, recollect ānāpāna to give rise to dhyāna-concentration, and recollect death to awaken to impermanence and the four noble truths. When the illness of the three realms is exhausted, one then attains the noble path.