起信論疏筆削記 10.37

10.37

First, the general heading. The Commentary states: "Because of space..." is the second part: first, presenting both similes of space and the mirror. If based on the meaning of the Śāstra, it merely clarifies that the marks of enlightenment have four meanings; because each and every meaning pervades the dharmadhātu, it therefore presents two similes, using empty space to illustrate pervasiveness and the pure mirror to illustrate the four kinds. Presenting both similes completely: if it only cited the simile of space, it would not reveal the four meanings; if it only cited the simile of the mirror, it would not reveal pervasiveness. Therefore, it presents both similes so that they mutually illuminate and reveal each other. It is not necessarily that empty space also possesses the four meanings; now it is spoken following the mirror, hence it is said that it possesses all of them.