Escapism is a valuable tool, especially in times of extreme stress, but to me seeking escapism one is not pursuing something that will enrich or bring growth to his/her life rather simply a way to avoid dealing with unpleasant realities. To me it never rises above being a distraction.

Is there a word for getting so lost in something that for lack of a better way of saying it, feeds one's soul, i.e. great music, theater, literature, visual art, etc?