According to Jnyanaprabha, the Buddha first preached the doctrine of existence, next that of the existence of mentalsubstance, and lastly that of unreality.)
2
We are isolated, individual mentalsubstances separate from each other and from the physical objects that surround us.
3
So Descartes's revolutionary beginning seems to turn us into atomistic, detached mentalsubstances, unsure of whether we're all alone in the universe.
4
Back of and under the teachings of the various cults and schools, remains ever constant the Principle of the MentalSubstance of the Universe.