In today's article in the
SFgate.com series Finding My Religion David Ian Miller interviews Martin Lowenthal about dark retreats. These are retreats that are spent completely in a dark room. Lowenthal is a Tibetan Buddhist.
I think it sounds very intriguing. Lowenthal says that initially people tend to sleep a lot and that it's important to let that happen because it's part of becoming completely relaxed. That is one of the benefits of dark retreats. Because even your eyes are shielded from stimulation, you relax more deeply than normally. It sounds very restful.