首楞嚴義疏注經 5.415

5.415

此敘觀成獲忍，發此大用。四大、身心、虛空、佛國同一虛妄，唯是圓常。冥此發用，豈拘方所。

This recounts that when contemplation succeeded, he obtained forbearance and brought forth this great function. The four great elements, body and mind, empty space, and the buddha-lands share the same single falsity, being purely the perfectly eternal. Merging into this and bringing forth its function, how could it be restricted to location?