四明十義書 1.11

1.11

荊溪云：如常坐等，或唯觀理。隨自意，從末從事。既云純明理觀，乃是三種三昧專令於識陰修十乘也。

Jingxi says: 'As in the constantly sitting [samādhi] and so forth, or exclusively contemplating principle; following one's own thought, it proceeds from the branches and proceeds from phenomena.' Since you say it purely elucidates principle contemplation, then it must be the three kinds of samādhis exclusively enjoining the cultivation of the ten vehicles upon the aggregate of consciousness.