首楞嚴義疏注經 4.198

4.198

"Pūrṇa! Because you set form and emptiness against each other in mutual conflict and usurping within the tathāgatagarbha, the tathāgatagarbha accordingly becomes form and emptiness, pervading the dharmadhātu. Therefore within it the wind moves and space becomes clear, the sun is bright and clouds are dark; sentient beings are confused and obscured, turning their backs on enlightenment to unite with the dusts, hence giving rise to afflictive toil and having worldly characteristics."