In its true state, mind is naked, immaculate… Some call it ‘The Mental Self’… Some call it ‘The Buddha Essence’… Some call it ‘The All-Foundation’.
This passage catalogs the plurality of traditional names assigned to Mind across Buddhist and related schools, asserting that the true state of mind is naked and self-luminous, serving as the foundational ground of all experience.
, The Tibetan Book of the Great Liberation, 1954thesis