If one realises, in accordance with one’s own unmistaken mind or the power of the mind, that discerning consciousness is the very nature of the buddhas, bodhisattvas, and the like, one is enlightened. If one fails to understand this, everything appears as the vessel and contents that constitute samsāra. The three worlds are simply this; the great elements are simply this.

-- Padmasambhava, Guru Rinpoche