金剛經纂要刊定記 2.172

2.172

一、觀身不淨，即有漏色蘊具有五種不淨。一、種子不淨。乘過去業識種子，攬現在父母精血，合成身故。故《淨名》云：「是身如幻從顛倒起，是身如影從業緣現。」《智論》云：「是身種不淨，非餘妙寶物，不從華間生，唯從穢道出。」二、住處不淨。於母胎中居生藏之下、熟藏之上，常受熏穢。故《智論》云：「是身如臭物，不因華間生，不從薝蔔有，亦不出寶山。」三、自體不淨。合三十六物以成身故。謂外有髮、毛、爪、齒、眵、淚、涕、唾、垢、汗、便利等十二，次有皮、膚、血、肉、筋、脈、骨、髓、肪、膏、腦、膜等十二，中有脾、腎、心、肺、肝、膽、腸、胃、赤痰、白痰、生藏、熟藏等十二。《智論》云：「地水火風質，能盛受不淨，傾海洗此身，不能令香潔。」四、自相不淨。九孔常流不淨物。故《智論》云：「種種不淨物，充滿於身中，常流出不止，如漏囊盛物。」五、究竟不淨。一旦命終，胮脹爛壞臭惡狼藉不堪見。故《淨名》云：「是身假以澡浴衣食，必歸磨滅。」《智論》云：「審諦觀是身，終歸於死處，難御無反復，背恩如小兒。」《金光明》亦云：「雖常供給懷怨害，終歸棄我不知恩。」

First, contemplating the body as impure: that is, the contaminated form aggregate possesses five kinds of impurity. First, impurity of seed: riding on the karmic consciousness seeds of the past and taking up the semen and blood of the present parents, they combine to form the body. Therefore the Vimalakīrti Sūtra says: "This body is like an illusion, arising from inversion; this body is like a shadow, appearing from karmic conditions." The Mahāprajñāpāramitōpadeśa says: "The seed of this body is impure, / Not other wondrous jewels; / It does not arise from among flowers, / But emerges only from an unclean path." Second, impurity of dwelling place: inside the mother's womb, dwelling below the stomach of crude food and above the stomach of digested food, constantly subject to foul-smelling impurities. Therefore the Mahāprajñāpāramitōpadeśa says: "This body is like a foul thing, / Not born from among flowers, / Nor existing from campaka, / Nor emerging from a jewel mountain." Third, impurity of intrinsic nature: combining thirty-six substances to form the body. That is, externally there are twelve: hair, body hair, nails, teeth, eye rheum, tears, mucus, saliva, dirt, sweat, feces, and urine. Next there are twelve: outer skin, inner skin, blood, flesh, sinews, vessels, bones, marrow, fat, grease, brain, and membrane. Internally there are twelve: spleen, kidneys, heart, lungs, liver, gallbladder, intestines, stomach, red phlegm, white phlegm, stomach of crude food, and stomach of digested food. The Mahāprajñāpāramitōpadeśa says: "The substance of earth, water, fire, and wind / Can hold and receive impurities; / Even emptying the ocean to wash this body / Cannot make it fragrant and clean." Fourth, impurity of specific characteristics: the nine apertures constantly flow with impure substances. Therefore the Mahāprajñāpāramitōpadeśa says: "All kinds of impure substances / Fill the body; / Constantly flowing forth without ceasing, / Like a leaking bag containing things." Fifth, ultimate impurity: once life ends, it swells, rots, decomposes, is foul, vile, and scattered, unbearable to behold. Therefore the Vimalakīrti Sūtra says: "Though this body is temporarily bathed, clothed, and fed, it must eventually return to destruction." The Mahāprajñāpāramitōpadeśa says: "Examining and truly contemplating this body, / It ultimately returns to the place of death; / Hard to control, lacking reciprocity, / Ungrateful like a small child." The Suvarṇaprabhāsa also says: "Though constantly provided for, it harbors resentment and harm; / In the end it abandons me, ungrateful."