大方廣圓覺修多羅了義經略疏 2.1245

2.1245

總標加行中所證之境，誡其邪謬。謂信、解、行、證雖階級不同，而所信乃至所證之法元來不異，謂解則解其所信，修則修其所解，證則證其所修。今明證得境界，若非本所信等法，即不應取。

This generally indicates the realms attained in preparatory practice (prayoga), admonishing against errors. That is to say, although faith, understanding, practice, and realization have different gradations, the dharmas from that which is believed up to that which is realized are fundamentally not different: understanding means understanding what one believes, practicing means practicing what one understands, and realizing means realizing what one practices. Now, in clarifying the attained realms, if it is not the dharma fundamentally believed and so forth, it should not be grasped.