治禪病祕要法 2.31

2.31

"The practitioner sees his own body fill the great earth, his three hundred and thirty-six joints all like high mountains reaching to the formless realm, with water emerging from the navel. Four great venomous snakes disport in the water, fire issuing from their mouths; ten evil rākṣasas run within the fire, wind emerging from their ears and wind emerging from their anuses, blowing and shaking the mountains; all the ghosts and spirits come glaring, dismembering his joints.