Tao-sheng: The Bodhisattva-Mahāsattva Fine Sound

Thereupon Śākyamuni Buddha [faced the east and] emitted rays of light from the fleshy tuft on his head, that is, from one of the marks of a great man, and also from the white curls between his eyebrows.

When the multitude heard of the former affairs of [the bodhisattva] Medicine King, they again praised the meritorious virtues of the Dharma Blossom with all the more faith and respect, all wanting to protect and keep [the sūtra]. The methods of propagating it must have a cause. [Of the possible] practices connected with this cause, in general there is nothing more penetrating than “the samādhi [of the manifestation] of the body of all forms.” What is “the samādhi [of the manifestation] of the body of [all] forms?” It is none other than the wisdom of the Dharma Blossom. When men glorify and spread the Dharma Blossom they manifest this samādhi, easily changing appearances and preaching it in boundlessly varied ways. The [bodhisattva-mahāsattva] Fine Sound (Gadgadasvara) is himself the one [who has attained samādhi]. By resort to traces he goes back and forth [from one realm to another] in order to propagate this sutra. The benefit he gives is very great. [The Buddha] emits a ray of light [from] between his brows to illuminate that realm because he wishes to let [the bodhisattva] Fine Sound come there.

Tao-sheng Commentary on the Lotus Sutra, pp327