In 1958, Robert Monroe, an ordinary man and successful businessman in the media industry, unexpectedly and involuntarily begins to experience a whole series of out-of-body journeys. Gradually overcoming the fear of death that always accompanies such experiences, he manages not only to control the entire process of "disconnection" from his physical body but also to explore and map the entire realm of the unseen that exists above and beyond our known five senses. Having assured himself that human consciousness survives after physical death and having come into contact with many non-material entities, Monroe dedicated the rest of his life to awakening his fellow humans. In fact, discovering that certain sound stimuli synchronize the two hemispheres of our brain, causing specific changes in consciousness, he founded the famous Monroe Institute of Research in 1971, through whose advanced technology anyone can experience the fact that we are much more than our material body.