大方廣圓覺修多羅了義經略疏 1.517

1.517

Because it has no boundaries. This is truly because the nature of the tathāgatagarbha is fundamentally like this; how could it require decreasing the old and adding the new, destroying delusion and producing wisdom? Therefore, with the triple cessation, one mysteriously accords with the enlightened mind; taking this as the basis for cultivation, one only then properly gains the name of 'causal stage.'