སྡུག་པར་མོས་པ་འདི་ནི་རྣམ་པར་ཐར་པ་གསུམ་པའོ། །
The sixth liberation is transcending the scope of infinite consciousness in all aspects, and then perfecting and remaining within the scope of nothingness after thinking, ‘There is nothing at all.’
Perfection of wisdom, Emptiness, World systems