As described in the Suttas, Siddhartha Gautama experienced (at least) 5 dreams ushering him to enlightening beneath the Morning Star. Even casual perusal of kōan collections, reveals that many kōans emerge directly from ancestral dream consciousness. Dream consciousness has always played a vital role in the path of awakening.
The practice of dream-kōan is a dramatic, authentic process of awakening, relevant for both individuals and communities. Recent neuroscience studies show that we (individual and community) are often stuck in “default mode thinking.” Dream consciousness, our internal psychedelic system, launches us into new realms of individual and group realization.