摩訶止觀 7.85

7.85

若緣女色，耽湎在懷，惑著不離，當用不淨觀為治。觀所愛人初死之相，言語適爾奄便那去？身冷色變蟲膿流出，不淨臭處穢惡充滿，捐棄塚間如朽敗木，昔所愛重今何所見？是為惡物，令我憂勞。既識欲過，婬心即息。餘八想亦治婬欲。《大論》云：「多婬者令觀九想；於緣不自在令觀背捨；緣不廣普令觀勝處；不能轉變令觀十一切處；若有怖畏令修八念。」皆以不淨為初門，悉治婬火，開解脫門，與四種八定相應，助油增明（云云）。

If one conditions female beauty, indulging and clinging to it within the mind, deluded, attached, and unable to leave it, one should use the contemplation of impurity as the remedy. One contemplates the initial death-state of the beloved person: their speech had just taken place, and in an instant, where have they gone? The body turns cold, the color changes, worms and pus ooze out, and it is filled with impure, foul, and repulsive things, cast away in the charnel ground like rotten wood; what can now be seen of that which was cherished in the past? It is a repulsive object that causes me worry and toil. Once recognizing the fault of desire, the lustful mind immediately ceases. The remaining eight perceptions also remedy lust. The Da zhidu lun says: 'For those with much lust, have them contemplate the nine perceptions; for those not free regarding objects, have them contemplate the liberations (aṣṭa-vimokṣa); for those whose objects are not vast and universal, have them contemplate the stations of mastery (abhibhvāyatana); for those unable to transform, have them contemplate the ten totalities (kṛtsnāyatana); if there is fear, have them cultivate the eight recollections.' All take impurity as their initial door, all extinguishing the fire of lust, opening the door of liberation, according with the four kinds of eight dhyānas, assisting as oil to increase brilliance, and so forth.