If hell is the wasteland, then purgatory would be the journey where you leave the place of pain. You are still in pain, but you’re in quest with a sense of possible realization. There is no longer despair. You really do not have a sacred place, a rescue land, until you can find some little field of action, or place to be, where it’s not a wasteland, where there is a little spring of ambrosia. It’s a joy that comes from inside. It is not something that puts the joy in you, but a place that lets you so experience your own will, your own intention, and your own wish that, in small, the joy is there. The sin against the Holy Ghost, I think, is despair. The Holy Ghost is that which inspires you to realization., and despair is the feeling that nothing can come. That is absolute hell.
– Joseph Campbell