" Some feelings and thoughts seem to emerge only in dark mood. Suppress the mood, and you will suppress those ideas and reflections. Depression may be as important a channel for valuable "negative" feelings, as expressions of affection are for the emotions of love....Depression has its own angel, a guiding spirit whose job it is to carry the soul away to remote places where it finds unique insight and enjoys a special vision."

--Thomas Moore, in "Care of the Soul"