In any of the four times and ten directions
Enlightenment will not be found
Except in the mind, which is the fully enlightened state.
Do not seek the Buddha in any other source.
(Otherwise) even if the Buddha (himself) searches, it will not be found.

Longchenpa

from the book Buddha Mind: An Anthology of Longchen Rabjam's Writings on Dzogpa Chenpo

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