i think the most acceptable theory other than the parallel dimension is the dream reap theory
when we are dreaming, there are some things we see there even we didn't see it yet in reality and when we wake up we may forget it but it somehow registered in our memory so when you see someone or see someplace you will feel like you already encounter it before
we creationist, also believe that it may be the cause of the 6th sense or the sense of spirit, were you can sense something from nothing which is the cause of the divine guidance or some unbounded activities at the astral world
