肇論新疏 2.188

2.188

This explains non-abiding in terms of compassion and wisdom guiding each other. The first phrase shares its wording with Laozi, who says: "Harmonize its light, unify its dust." Here those words are borrowed to clarify upāya-jñāna engaging in being to transform sentient beings. "Wandering" means circling all around everywhere. "Departing" refers to going to the five destinies; hence, resting in stillness, he moves. "Returning" refers to returning to nirvāṇa; hence, resting in motion, he is still. This means he does not leave saṃsāra, yet constantly returns to nirvāṇa, because he completely understands that saṃsāra and nirvāṇa have no dual boundaries. "Tranquilly," "serenely," and "placid" are all similar in meaning. The point is: guiding wisdom with compassion, he goes to the five destinies, universally transforming sentient beings and leaving nothing undone. Yet at the very time of expedient means, wisdom guides compassion; seeing the realm of sentient beings as empty, he liberates where there is nothing to liberate; hence it is said, "serenely returning, placid in non-action." This is just as explained in our school's doctrine of compassion and wisdom guiding each other, where "the power of a single thought-moment is fully endowed with both expedient means and wisdom."