治禪病祕要法 2.16

2.16

"If he wishes to make that deity come quickly, he should wash and bathe cleanly, not eat the five pungent roots, not drink liquor, not eat meat, and in a quiet and secluded place single-mindedly count the breath, recite the name of that deity, and visualize that deity's image. In one to seven days, the great deity of the Snow Mountains along with the twelve White Light Deities will arrive before the practitioner. First he will expound the Dharma for him, then bestow the medicine, and further instruct him in the twelve doors of dhyāna. Those deities are all great bodhisattvas of the fifth ground.