There are two huge gaps in scientific theory. One, the contradiction between classical and quantum mechanics, is discussed in many publications. The other, the total failure to explain why anything made of atoms (such as ourselves) can be conscious, has little acknowledgement. The main thesis of this book is that to be conscious at all, you need an unconscious mind. The author explores the idea that this mind sometimes makes contact with a whole unknown world, sporadically revealed by paranormal effects, but perhaps discoverable by hitherto uninvented scientific instruments.

The...