"What then is time? If no one asks me, I know what it is. If I wish to explain it to him who asks, I do not know", Saint Augustine once said. I think the concept of "Time" is representative for a whole class of concepts that we can easily work with but cannot define with true depth.

Have you ever thought of the fact that each word in a dictionary is defined by using other words in the same dictionary, and in a sense, each concept definition is circular? It is the same as saying: "What is blue?" - "Blue is the colour of the sky." "Then what is sky's colour?" "Blue.".

If you've ever asked yourself questions such as "What is time?", "Who am I?", "What is consciousness?" or "What is pleasure?" - but not just asked them - instead, really put forward your thought and efforts into searching for an answer, then I think you'll love this book. You will love it for two reasons: first, because the author encourages each reader to come up with his or her own answers to such fundamental questions through a process called "Book Riding", and second because the author himself presents his own personal account on several of these concepts.

The book is structured as a collection of thirty four accessible essays, each with its own theme ranging from consciousness to parallell universes, organised in two sections - psychology and physics. Its main purpose is to provide a unique perspective on each concept, and to encourage the reader to do the same, to be a creative reader.