The book by the famous British parapsychologist Celia Green will attract the attention of both specialists in the field of dream research and inexperienced readers interested in their inner world. Its main advantages can be considered the abundance of factual material and its impartial analysis in the best traditions of Oxford. Numerous examples demonstrate the presence in dreams of such unusual phenomena as clairvoyance, telepathy, out-of-body experience. They will help the reader find an explanation for many unusual experiences that may have taken place in his life, or correctly interpret them in the future.