大方廣佛華嚴經隨疏演義鈔 90.38

90.38

疏「或略不喻」者，以案文釋空中之畫。若準新經，乃有三喻，謂如空白日，亦如夢，則空可喻二，謂無所依及常住相。如白日喻喻白法為相，如夢一喻喻無二相。欲言其有，覺竟無實；欲言其無，夢境歷然。故非有無為無二相。其不思議，後偈顯之。

In the commentary, “Or omitting metaphors” means using the text to explain painting in the sky. If based on the new sūtra, there are three metaphors: like empty space, the clear sun, and also like a dream. Space can illustrate two: being without support and the characteristic of permanent abiding. The metaphor of the clear sun illustrates having white dharmas as its characteristic; the single metaphor of a dream illustrates the characteristic of non-duality: wishing to say it exists, upon waking there is ultimately no reality; wishing to say it does not exist, the dream state is vivid and clear. Therefore, being neither existent nor non-existent is the characteristic of non-duality. Its inconceivability is revealed by the subsequent verse.