大毘盧遮那成佛經疏 13.35

13.35

Next is the Tathāgata's Bowl seal. The left hand holds the two corners of the robe (the method is: take the pointed corner of the kāṣāya near the hand and the corner draped over the shoulder, wrap them around the arm, bring them back into the hand, and make the two corners like a pair of ears); then overlap the two hands, placing the right above the left as in the meditation hand [posture]; bring them up to be level with the navel, slightly bent in the shape of overlapped hands supporting a bowl, and that is it. Making this is identical to the Tathāgata holding this kāṣāya, the deportment of the insignia of all buddhas; it can also cause all beings who are not vessels to become capable of being Dharma vessels. The homage of the mantra is as before. 'Bha' has the meaning of existence (bhava), namely the three realms of existence. Because it is originally unborn, one is free from the three realms of existence, for the three realms of existence are originally unattainable. Ridding oneself of these three realms of existence, one attains the Tathāgata's true existence, which refers to the dharmakāya of all buddhas.