The Tibetans have develloped a dream yoga based on the acient Tibetan shamanic Bön tradition and Buddhism. While being a Buddhist yoga the goal is Enlightment it is also supposed to give supernatural powers on the path.
For anyone who is interested I suggest the book
"The Tibetan yogas of dream and sleep" by Tenzin Wangyal Rinpoche.
Also about the subject:
http://www.tarab-institute.org/de/luciddreaming.htm
http://en.wikipedia.org/wiki/Dzogchen
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