Melong

[citation needed] In Tibetan iconography it may be understood as a symbol of emptiness (Śūnyatā) and pure (ka dag) consciousness.

The mirror may be understood as a quality of the mindstream that denotes perceiving experience as it is without obscuration formed by klesha.

[4] The mirror motif is pervasive throughout Buddhist literature[2] and is important to traditions of Dzogchen, representing the ground or base.

"[7] According to Achard, Dzogchen tantras define the basis as "Great Primordial Purity" (ka dag chen po).

The Tantra of the Beautiful Auspiciousness (bKra shis mdzes ldan gyi rgyud) defines this as "the state abiding before authentic Buddhas arose and before impure sentient beings appeared.