An unfortunate product of dreaming is symbolic personification of data, where we simply filter data from that state into incoherent symbolism. It could also be neurologically linked to levels of neurotransmitters released at sleep. I don't deny the hallucinatory elements that can very well come from our own brain pharmacology.

The impact of this can be seen with precognitive data that gets filtered into symbolic precognitive dreams. I try my best to prove this exists also so researchers can hone in on this area and understand the neurological implications at work. Perhaps certain inhibitors might clarify and make more coherent precognitive dreams. Hard to say with out the hard science and research.