The manas has existed since beginningless kalpas, yet it can be extinguished; it is not a dharma that neither arises nor ceases. The tathāgatagarbha moment by moment gives rise to the seeds of consciousness of the manas, forming the manas's continuous operation; therefore it is said that the manas is also of a nature of arising and ceasing.
The mental activities of the manas change ceaselessly, its seeds of consciousness arise and cease without stop, its ignorance constantly transforms, and its afflictions also arise and cease without end; therefore it is said that the manas is impermanent and suffering. The manas is brought forth by the tathāgatagarbha and is of a nature of arising and ceasing; therefore it is empty and illusory. Arising, ceasing, and changing is suffering; being unable to remain forever constant and single is suffering.
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