華嚴經義海百門 1.31

1.31

However, the principles above are difficult to conceive in their reality-limit; the movements of the mind rarely reach their import. The true source cannot be measured; how could names and words fathom its origins? Yet non-speaking does not terminate speaking: relying on essence, it stirs its myriad functions. Having no phenomena does not preclude discriminating phenomena: according with conditions, they are revealed through the single emptiness. To illuminate phenomena one must necessarily speak of emptiness; when explaining essence, how could one not unfold function? Therefore, when traces are withdrawn, the conditioned mind has nothing to rely upon; when marks are eliminated, the deluded consciousness has no support. Only then can it be called arising from conditions, and will it conform with the dharmadhātu.