大毘盧遮那成佛經疏 2.47

2.47

Eighteenth: regarding "What is the human mind? It means thinking of benefiting others": this means loving to seek out and think: "So-and-so has been kind to me; I should use such upāya to make them gain great benefit. So-and-so once did me harm; I must now retaliate against them," as well as various plans to manage people and benefit things—all of these are the human mind. Mindfully contemplating one's own mental activities and seeking the benefit of the Dharma early, without being distracted by contemplating other conditions, is its antidote.