The whole idea of alternate universes, alternate realities or alternate timelines that are created as a result of a persons decisions is an extremely
narcissistic viewpoint, as you are essentially saying there is a "multiverse" that revolves around you, and your decisions.
If there are multiple realities, or shall we say "realms" or universes, an individuals free will is only one part of what may or may not influence
What you are possibly asking is if it is possible for your conciousness to trade places with the conciousness of your counterpart from another
reality, and if so that might be triggered by sleeping, or more precisely dreaming. I can not answer that question except to say there are times even
when you are awake that you feel you are somewhere else that is "unreal". Call it a daydream if you will. Are you actually in another version of
reality that "feels off" because it is, or are you just perceiving something that another version of you once experienced, is experiencing or will
experience, in another "universe"? That might explain why sometimes our dreams "come true", but not exactly how we perceived them to, or why we
remember things we dreamed, and put it down to déjà vu.
There is one problem with this whole concept, and that is simply that reality does not revolve around you, or me - and there are other things or
people that shape reality. This is one of the dangers in discussing your dreams. Sometimes people with unscrupulous motives will attempt to thwarte
your dreams or worse, fake them.
This happens a lot in religious environments, where churches for example will attempt to create reality they have no business meddling with, in order
to attribute the outcome to thier version of "God". Why do this? Primarily to swell thier membership and thus thier donor bases. I am not saying that
there is no God, rather that there is a huge problem these churches create for themselves when they take it upon themselves to simulate His
activities. If he does exist, God most probably does allow people to perceive these alternate realities in the same way He does, however when we get
involved in pretending that another reality is this reality, it is simply not our place to do that.
For the record, I believe He does exist, and that there is a multiverse, which He is both the creator and master of. If we do cross between them from
time to time, it's because it's something He allows us to do, for reasons only He can explain. What we do with that information is up to us, assuming
we don't try to impose that on our reality. To do that would be to be playing God, which we do to our peril. But that is just my view, as it is the
only way I can reconcile dreams I have had that turned out different in my reality.
edit on 17-4-2012 by FlutterByte because: Clarification
edit on 17-4-2012 by FlutterByte because: Spelling