And where could its root be except in food (earth)? And in the same manner, my son, as food (earth) too is an offshoot, seek after its root, viz. water. And as water too is an offshoot, seek after its root, viz. fire. And as fire too is an offshoot, seek after its root, viz. the True. Yes, all these creatures, my son, have their root in the True, they dwell in the True, they rest in the True.

In plain words: The body's root is food, food's root is water, water's root is fire, and fire's root is the True. All living beings come from the True, live in it, and rest in it.