Answer:
Vairocana is a celestial buddha who is often interpreted, in texts like the Avatamsaka Sutra, as the dharmakāya of the historical Gautama Buddha. In East Asian Buddhism, Vairocana is also seen as the embodiment of the Buddhist concept of Śūnyatā. In the conception of the Five Tathagatas of Mahayana and Vajrayana Buddhism, Vairocana is at the centre and is considered a Primordial Buddha.
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