Intersecting dimensions are those dimensions that are a part of this present reality but which do not exhibit concrete existance as defined within the rules of the present dimension. Typically a bridge is established to make an intersecting reality a "comfortable" aspect of this reality. In dreams, we divide the reality into conscious and subconscious. When we are "unconscious" the body sleeps and the dream world can move into place, however, it has no apparent connection to this reality. Thus it does not defy the rules of this reality.