According to Freud, our dreams are a representation of our unconscious desires, thoughts and motivations. Dreams are projection of our repressed desires, buried deep in our subconsciousness, Though, for past many centuries, Tibetan Monks and Indian Yogis have been using Yog Nidra or lucid dreaming to explore in the basement of their subconsciousness, A lucid dream is any dream in which one is aware that one is dreaming and can utilize the extraordinary power of subconsciousness.
Irrespective of your level of meditation capability, you may be interested in discovering that certain brainwaves make out of body experiences more plausible, and there are meditations to transport your brain into this kind of state. This is a real technique to aid you! The brain, like anything else, vibrates at certain frequencies, which generate certain chemical processes. You could very well have heard of the alpha, theta, and delta waves as we experience nightly sleep. There are analaguous brain waves for every state, including the out of body experience