The sutra system also acknowledges tathāgatagarbha is luminous and empty at once, but neglects to mention that it may have multiple manifestations. However, we learn from the tantric texts that tathāgatagarbha is the true nature of all phenomena; to ordinary people, it appears as the defiled world we are in; whereas to realized beings, the manifestation of tathāgatagarbha is the mandala of the buddhas—the world of peaceful and wrathful deities.

- Quote from Gateway to the Vajrayana Path, "The Parable of a Black Snake"