From Cao Dai's Collection of Saintly Teachings

Our soul temporarily borrows the physical body in this world like a snail borrows its shell. Do not be attached to that shell and hinder our evolution. The ultimate goal of a spiritual practitioner is to become all good, all perfect to befit the level of the Perfect Beings in the spiritual realm. We temporarily borrow what is not real to establish at the real. Don’t think that we only need the real and so cast off all that which is not real. The Creator has arranged that humanity must do everything that is befitting the moral principles to be of service to this world; then we can hope to have a firm foundation as a stepping stone to advance to the True realm.