大方廣佛華嚴經疏 28.44

28.44

Thirty-seven: The joints and various bones. Previously bone marrow was mentioned; the marrow has already been explained, and now the joints and various bones are added. If combined, it is merely one matter: namely, the bones of the joints. If separated, the joints are in themselves one matter, like disjointing limb by limb, which was not in the previous enumeration. In the practice of pariṇāmanā, the phrase "realm without bond" refers to the realm of nirvāṇa. The phrase "endowed with the great strength of Nārāyaṇa's joints" is as weighed in the Nirvāṇa Sūtra. The phrase "body manifesting universal illumination" is because, like a pure, bright mirror, there is nothing it does not manifest. The rest is intelligible. In the purpose, the phrase "attaining wisdom" is because wisdom is the bone of the ten thousand virtues.