All pleasures flow from love, because what we love we feel as pleasant. There is no other source of any pleasure. It follows, then, that the quality of the love determines the quality of the pleasure. Pleasures of the body or of the flesh flow from love for ourselves and from love of the world, and these are also the source of our urges and their gratifications. The pleasures of the soul or spirit, though, all flow from love for the Lord and love for our neighbor, which are also the source of affections for what is good and true and of our deeper bliss. These loves and their pleasures flow in from the Lord and from heaven by an inner path, from above, and move our deeper natures. The other loves and their pleasures, though, flow in from the flesh and the world by an outer path, from below, and move our outer natures.
To the extent that the two loves of heaven are accepted and affect us, then, our deeper levels—levels of our souls or spirits—are opened; and they look away from the world toward heaven. To the extent that the two loves of the world are accepted and affect us, though, our outer levels—levels of the body or the flesh—are opened; and they look away from heaven toward the world. As loves flow in and are accepted, so their pleasures flow in, pleasures of heaven into our deeper natures and pleasures of the world into our outer natures, because as already noted all pleasure comes from love.
from Heaven and Hell, Section 396