Greeting and welcome Highest Realm, nice name. 

Dreaming is related to our creative natures and also imaginative capacity is related to our creative natures.

Dreams can be on different levels. They can reveal what is in the subconscious, therefore they can be like a road sign, pointing to a destination where a message for yourself lies.

Dreams can be related to out of body experiences or OOBE. this is where it feels like another reality location, and that you are occupying your subtle body, moving about, talking, etc with most of your 5 senses operating perhaps, or a few of them; generally the feeling and awareness is greatly enhanced over a regular type dreaming.

Lucid dreaming is a great deal like an OOBE. I'd say it's a close relative but a degree lessor than the full blown oobe yet just as remarkable to deliver messages of who you are, or what you believe, or even to meet up with others, known or unknown in physical reality.

Dreams are related to phasing, or what we say is visions in consciousness level one, we call it C1.

An oobe can be like having a vision, if it depicts a future event which later happens in real time.

In dreams there is a perceiver self. the perceiver perceives symbols within the brain neurons firing, we might say. the symbols are related to your belief systems back in C1. when you awaken, you remember the symbols given, then the interpretor part of your self, it proceeds to try to interpret the symbols of your obe, dream, or vision.

interpreting will follow your own belief systems in place, as to what a symbol means to you personally.
this is known as filters in place, where you interpret what you experienced within a dream. An emotion in a dream is also something that gets interpreted, correctly or incorrectly, just as a symbol can get filtered correctly or incorrectly.

when we are sufficiently trying to understand dreams and messages delivered, we have through that desire to understand attained an opening in the mind, through which we can circumvent our personal filters which block the correct interpretation and the messages get much clearer at that point, or the visions begin to be more than just a dream.
  hope I didn't overload you! love, alysia