Things do not exist, yet they are perceived. There is no nonattachment, yet there is purification. It is like a magical illusion or the sky. Though a technically accurate painting lacks height and depth, they appear there. Likewise, there is never any duality in unreal construction, yet it appears.
When water is muddy and then clears, its clarity is not produced by that (muddiness) but is just the removal of the taint. The principle is just the same in the purification of one’s own mind. It is accepted that the mind which is always naturally luminous is flawed by accidental faults; and it is decreed that there is no other mind apart from the mind of reality which is naturally luminous. Hence the mind is like water. Just as water is pure but polluted by accidental pollutants, mind is accepted as naturally luminous but accidentally flawed by accidental faults. It is decreed that apart from the reality-mind there is no other mind of a relative nature which has natural luminosity. Therefore, “mind” is to be understood here as the “suchness of mind”.