This fascinating book continues the story begun in the bestselling and critically acclaimed book The Mind in the Cave. Drawing on the latest research and recent discoveries, the authors skilfully link material on human consciousness, imagery and belief systems to propose provocative new theories about the causes of an ancient revolution in cosmology, the origins of social complexity and even the drive behind the domestication of plants and animals. In doing so they create a fascinating neurological bridge to the mysterious thought-lives of the past and reveal the essence of a momentous period in human history.