法苑珠林 34.17

34.17

第九念身者。謂專精念身。髮毛爪齒皮肉筋骨。膽肝肺心脾腎大腸小腸。白直旁光屎尿百葉。滄蕩脾泡溺淚唾洟。膿血脂涎髑髏腦等。何者是身。地種水種火種風種是也。皆是父母所造。從何處來為誰所造。此之六根。於此終已當生何處。除諸亂想自致涅槃。不離身念便獲功德。是名念身。

Ninth, 'mindfulness of the body' means with concentrated essence to be mindful of the body: hair of the head, hair of the body, nails, teeth, skin, flesh, sinews, bones, gall bladder, liver, lungs, heart, spleen, kidneys, large intestine, small intestine, rectum, bladder, feces, urine, omentum, stomach, spleen, membrane, tears, saliva, nasal mucus, pus, blood, fat, drool, skull, brain, and so forth. What is the body? It is the earth element, water element, fire element, and wind element; all are produced by father and mother. Whence did they come, and by whom were they produced? Once these six sense faculties perish here, where will they be born? Eliminating all chaotic thoughts, one of oneself attains nirvāṇa. Never departing from mindfulness of the body, one then obtains merit. This is termed 'mindfulness of the body.'