Dreaming is a natural part of the human experience. The subconscious mind comes alive during REM sleep and bombards us with images of people, places and things that seem all so jumbled and random.
People spend time and money trying to understand what influences their dreams and what those dreams actually mean. Others resort to the technique of lucid dreaming to control their dreams.
The ability to lucid dream and floating in an isolation tank go hand in hand. Lucid dreaming differs from regular dreaming because the dreamer retains an awareness they are dreaming. In other words, a lucid dreamer knows they are dreaming and can control the dream through their thoughts, words and actions.