Dreaming is a natural part of mammal brain function, and there is a ton of scientific and cultural research on dreams. Since this is a common human experience all cultures have some sort of culture related to dreams. Even people that are otherwise scientific minded will sometimes put special significance on their dreams and their meaning. The brain function of the brain during dreaming is almost exactly the same as brain function during waking consciousness. They way that we experience dreams is essentially the same as the way we experience the waking world. Dreams are very significant and important for this reason. Moving into the more esoteric aspects of dreaming there are several types of experiences that we having when dreaming, including psychological processing, astral travel and contact with spirit beings. Everyone astral travels and can contact spirit beings while dreaming and it is a natural part of the dreaming process. We are all capable of it no matter what our spiritual experience or abilities are otherwise. Special memory training meditative exercise to help you remember your dreams better!!! You have to do it regularly to keep your memory trained in order for this exercise to be effective.