華嚴經疏 1.7.4

1.7.4

it refers to being mindful of the merits of that Buddhahood, remembering and maintaining them without forgetting, which explains "abiding securely" in the sūtra. Alternatively, it means being mindful of those merits capable of counteracting, constantly keeping them present. Fourth is the purity of not following another's teaching: being in the ultimate path is called "approaching the path of exhaustion"; because the bodhisattva path reaches its limit, it is called exhaustion. Since what is realized in one's own mind opens, awakens, and displays, it is called "one's own correct practice," hence it says "not following another's teaching."