起信論疏筆削記 19.30

19.30

In the second, the Commentary states: "the single mark of the dharmadhātu" is the cognized object. "Fixing cognitive grasping on the dharmadhātu": fixing cognitive grasping refers to the cognizing mind, which rests the mind on the true principle to unite imperceptibly with the object. As for "the dharmadhātu of all Buddhas," the Dharma gates realized by all the Buddha-Tathāgatas are as countless as the sands of the Ganges and distinct from one another, yet each and every one is not different from dharmatā; those who enter this samādhi are completely able to know that there is no difference. As for "Because this tathatā..." and so on, because tathatā is the root of all dharmas, cultivating this samādhi also serves as the root for all samādhis. The Treatise states: "If a person..." downward: since this samādhi is the root, if one enters it, one will be able to produce and develop all samādhis; because the branches arise from the root, all samādhis are accomplished from this.