Vasubandhu

Vasubandhu first wrote the Abhidharmakosha, the great compendium that systematized the entire Buddhist analysis of mind and matter into interlocking lists — the standard reference for centuries. Then, converted by his brother Asanga, he turned to the Yogacara school and argued something stranger: the external world is a construction of consciousness, appearing real the way objects in a dream appear real. In twenty and then thirty terse verses he laid out how mind alone, ripening from its own seeds, projects the world it then mistakes for solid. Reality is not denied, but relocated — from out there to in here.