Claim. The physical self provides “vitality elements” to the spirit self (good or evil according to conduct), and the spirit self returns “living spirit elements” to the physical self. This bidirectional give-and-take is how good or evil bodily conduct produces good or evil in the spirit — and how grace-from-spirit produces joy and even physical healing in the body.
Elaboration. Per 6.3.1. The Structure and Functions of the Physical Self: “Good or evil in the conduct of the physical self is the main determinant of whether the spirit self becomes good or evil. This is because the physical self provides a certain element, which we call the vitality element, to the spirit self. In our everyday experience, our mind rejoices when our physical self performs good deeds but feels anxiety after evil conduct. This is because vitality elements, which can be good or evil according to the deeds of the physical self, are infused into our spirit self.”
The reverse direction: “The spirit self not only receives vitality elements from the physical self; it also returns an element to the physical self which we call the living spirit element. When people receive grace from a heavenly spirit, they undergo many positive changes in their physical self; they feel infinite joy and new strength welling up in them which can even drive away illness” (6.3.2. The Structure and Functions of the Spirit Self).
DP’s psychosomatic theology is precise: spirit and body are not merely correlated — they exchange substantive elements. This grounds DP’s understanding of revival phenomena, healing testimonies, and the felt connection between virtue and vitality.