The nature of mind and the nature of awareness are the same.
The nature of mind is subtle-
it is clear and calm, free from thoughts and feelings.
It is completely unobstructed, transparent emptiness.
Appearances arise from this transparent state as the expression of awareness.
The difference is that appearances of the nature of mind obscure the true nature of reality,
the appearances of awareness do not.
You need to dissolve grasping to ordinary appearances in order to see rigpa.