首楞嚴義疏注經 1.472

1.472

This directly reveals it. The eighth, ālaya, is the most subtle among all consciousnesses, and is called the "essence of consciousness." This subtle consciousness has two meanings: first, the meaning of awakening; second, the meaning of non-awakening. The meaning of awakening is precisely what this text calls "fundamentally luminous"; the fundamentally luminous is original awakening. Non-awakening is the arising and ceasing of avidyā; that is, the unarisen and unceasing uniting with arising and ceasing, being neither identical nor different, is called the "essence of consciousness." From this are transformed the sense faculties and body, seeds, the receptacle world, and so on, which is called "producing all conditions." Once the marks of consciousness appear, the fundamental nature is hidden; this is called "left behind by conditions." *Yi* (遺) means to lose. Thus the text below says: "All sentient beings, from beginningless time, mistake themselves for material things, losing their original mind." The *Abhidharma-samuccaya* says: "The realm of beginningless time is the equal support of all dharmas; because of this, there are all destinies and the realization of nirvāṇa." This is what it refers to.