When the power of the mental faculty is fully cultivated through spiritual practice, and the mental faculty becomes potent, one can then discard assistants and tools, accomplishing all dharmas without relying on the six consciousnesses or the physical body. For instance, in the second dhyana and above, the five consciousnesses are unnecessary. In the fourth dhyana and above, the physical body requires no respiration, nor does it need a pulse, heartbeat, or nourishment. In the state of non-perception, consciousness is unnecessary. In the realm of nothingness, the physical body is unnecessary. In the state of cessation, only the self and the eighth consciousness suffice. Great Arhats with complete liberation and eighth-ground Bodhisattvas can cognize all dharmas solely through the mental faculty, without requiring the six consciousnesses.
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