淨名經集解關中疏 1.281

1.281

"This body is unreal; the four great elements serve as its home." In this body, bones, flesh, and the like are the earth element; blood, marrow, and the like are the water element; heat and warmth are the fire element; and respiration and breath are the wind element. Not understanding the four great elements, people falsely grasp them as a body. Being a provisional combination, it is a home, not a real body.