When the twofold passions are destroyed, and the twofold hindrances are cleared away, and the twofold egolessness is fully understood, and the inconceivable transformation death of the Bodhisattva is attained - that which remains is the self-nature of the Tathagatas. When the teachings of the Dharma are fully understood and are perfectly realized by the disciples and masters, that which is realized in their deepest consciousness is their own Buddha-nature revealed as Tathagata.

(The Lankavatara Sutra)