Cittatva

Cittatva (Tib: Sems-nyid), Mind-in-itself or the Essence of Mind, is understood not as 'Mind' which arises as the activity of cognition,

but as the essence of the Mind, the bare ground, which is original primordial Intelligence (Skt: vidya, Tib: rig-pa) without differentiation into a subject-knower and an object that is known.

Source

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