首楞嚴義疏注經 3.82

3.82

"Why is this? If it came from waking, sleeping would then be destroyed; what would be taken as sleeping? If it definitely exists when there is arising, then with cessation it would likewise be non-existent; who would be made to undergo cessation? If it exists from cessation, arising would then be destroyed and non-existent; who would know what arises? If it emerged from the faculty, the two marks of waking and sleeping follow the body's opening and closing; apart from these two substances, this aware and knowing one is identical to flowers in space, lacking an intrinsic nature altogether. If it were produced from space, it would naturally be space's knowing; what does that have to do with your entrance?"