Is there more to our existence than what meets the eye? Discover a psychiatrist's journey from sceptic to believer in past lives through a patient’s hypnosis.

The latest instalment in Dr Hawkins’s 9-book series Power vs Force, Letting Go describes using the technique of surrender to remove negative blocks from life.

Ruiz is a descendant of the ancient civilisation Toltec, hence the distinctively New Age language, which most people either love or hate. Spoiler alert: I fall into the latter category.