Yogācārabhūmi-śāstra, Volume 34 (8)

Original text: 安立如是内外事已。复于彼事现见增上作意力故。以变异行寻思观察无常之性。此中内事有十五种所作变异。及有八种变异因缘。云何内事有十五种所作变异。一分位所作变异。二显色所作变异。三形色所作变异。四兴衰所作变异。五支节具不具所作变异。六劬劳所作变异。七他所损害所作变异。八寒热所作变异。九威仪所作变异。十触对所作变异。十一杂染所作变异。

Explanation: After establishing these internal and external phenomena, in order to directly perceive these phenomena, one strengthens the power of intensified mental engagement (adhimātramanaskārabala) for seeing the Dharma, and from the perspective of the transformation of all dharmas, one deliberates upon and contemplates the impermanent nature of internal and external phenomena. Among these, internal phenomena have fifteen kinds of transformations, and there are eight causes and conditions for transformation. What are the fifteen kinds of transformations of internal phenomena? The first is the transformation of positional stages as the physical body passes through different periods; the second is the transformation occurring in manifest color, such as the black, white, red, or yellow of one's complexion; the third is the transformation occurring in shape and form, such as tall or short, fat or thin, and so on; the fourth is the transformation occurring in the flourishing and declining of the physical body, such as having strength or lacking strength; the fifth is the transformation occurring in the limbs and joints of the body faculties, such as the loss of an arm or a leg and other impairments;

the sixth is the transformation occurring in labor, such as being fatigued or not fatigued; the seventh is the transformation occurring in being harmed by others, such as being bullied, slandered, defamed, having one's reputation damaged, and so on; the eighth is the transformation occurring in cold and heat, such as having a fever, feeling chilled, and so on; the ninth is the transformation occurring in deportment and movement, such as the physical body becoming sluggish, hunchbacked, or having difficulty moving; the tenth is the transformation occurring in the objects of contact, such as changes and alterations in the people, things, and affairs one comes into contact with; the eleventh is the transformation occurring in actions performed with a defiled mind, such as the shifting between wholesome and unwholesome karma; the twelfth is the transformation occurring in bodily illness, where one was previously healthy but now suffers from sickness and pain; the thirteenth is the transformation occurring in death, when life comes to an end; the fourteenth is the transformation occurring after death when the body turns bruised, discolored, and swollen; the fifteenth is the transformation occurring after death when the corpse disappears from sight, leaving no trace even of ashes and bones.