注大乘入楞伽經 4.56

4.56

四種言說，文顯可知。又夢言說者，亦云八地菩薩得無生忍覺已，緣勝解行地乃至七地，先所經境界不實，說諸法如夢，故名夢言說。

The four kinds of speech are clear from the text and can be understood. Furthermore, regarding speech of dreams, it is also said that when an eighth-bhūmi bodhisattva awakens to the forbearance of non-arising, they view the realms previously experienced from the stage of resolute conduct up to the seventh bhūmi as unreal, and speak of all phenomena as like a dream; hence it is called 'speech of dreams'.