大方廣佛華嚴經隨疏演義鈔 38.5

38.5

疏「如空包含無邊行海」者，此三義中，初一事、次一理、三即無障礙法界。然類六決定而但有三者，餘三證如方得有故。一謂觀相善，云無雜；二真實善，云不可見；三大善，云普能救護一切眾生。皆未證如，故無此三矣。

Regarding the commentary's phrase "Like space containing an ocean of boundless practices": among these three meanings, the first is phenomena, the next is principle, and the third is the unimpeded dharmadhātu. However, as to why it parallels the six determinations yet has only three: because the remaining three can only be possessed upon realizing tathatā. The first is called the goodness of contemplating characteristics, phrased as "free from mixing"; the second is real goodness, phrased as "invisible"; the third is great goodness, phrased as "universally able to rescue and protect all sentient beings." None have yet realized tathatā; hence these three are absent.