Mahāyāna Sūtra on the Manifestation of Consciousness (86)

Original text: 贤护。其为富丹那等。下恶鬼神。之所著者。便爱粪垢。腐败涕唾。诸不净物。以此祭解。欢喜病愈。其人以鬼神力。随鬼神欲。爱乐不净。臭朽粪秽。识以罪资。亦复如是。或生贫穷。或生饿鬼。及诸食秽。畜生之中。种种恶趣。由罪资识。身获苦果。

Explanation: The Buddha said, "Bhadrapāla, if a person is possessed by inferior evil ghosts and spirits such as the Pūtanā, that sentient being will come to love filthy, dung-fouled places, places of rot and stench, of mucus and saliva, and will delight in mucus, saliva, and other impure things. If these impure things are offered in sacrifice to the ghosts and spirits, the person's illness and suffering will vanish, because the ghosts and spirits can repay that person, using their supernatural powers to cure his illness. Those meager-merit evil ghosts—even a single spit from a person, they must scramble to seize it; saliva is a delicacy to ghosts and spirits, mucus is also a delicacy to ghosts and spirits, and in dung-fouled places there are also ghosts without merit that come to devour and feed. These ghosts and spirits of meager merit all received this retribution because while they were alive as humans they were unwilling to practice generosity, being miserly by nature. If a person is controlled by ghosts and spirits, then whatever the ghosts and spirits want to do through his body, he does; whatever the ghosts and spirits like, he likes, because his mind has been seized by the ghosts and spirits and he cannot act of his own accord. When sentient beings create sinful karma, the seeds of that sinful karma are stored in the ālayavijñāna, and the sentient beings manifested by the ālayavijñāna are just like this—loving lowly, degraded, filthy, dung-fouled places. Because this person did not cultivate merit, there is no meritorious karma in his ālayavijñāna, only sinful karma; thus this sentient being is made to be reborn either into a poor family, or into the destiny of hungry ghosts, devouring foul and filthy things, or into the animal destiny—for animals too eat nothing but filthy food and drink. Being born among these three evil destinies is all the result of the ālayavijñāna being nourished by sinful karma; the ālayavijñāna then causes his five-aggregate body to obtain such sinful, bitter retribution."