And at once I saw with great clarity that human beings possess two bodies. One is the physical body, the other — just as real, just as self-contained — is the emotional body. Like the physical body, the emotional body reaches a certain level of growth, and then stops. But it stops rather sooner than the physical body. So most of us possess the emotional body of a retarded adolescent.
p. 23 - Access to Inner Worlds (1990)