首楞嚴義疏注經 2.576

2.576

問：幻相不實，畢竟無體，何得復云其性真為妙覺明體？答：譬如空華，由依翳病觀空故有，離空無別華相，空華雖無自性，然以虛空為所依體。若翳病差，華相雖滅，空性不滅。諸法性相亦復如是，幻相雖滅，真性不動。

Question: Illusory appearances are unreal and completely devoid of substance; how can it be said again that 'their nature is truly the substance of wondrous, awakened brightness'? Answer: It is like flowers in space: they exist because one observes space with diseased eyes affected by cataracts; apart from space, there are no separate appearances of flowers. Although flowers in space have no self-nature, they take empty space as their underlying substance. If the cataract disease is cured, although the appearance of flowers ceases, the nature of space does not cease. The nature and appearances of all dharmas are also like this: although illusory appearances cease, the true nature does not stir.