A meditation over the existence of God, conceived in a sacred doubtfulness but which does not overshadow, though, religious hope. A bird's eye flight over man's need for spirituality, from ancient times to today's society, with a non-academical approach which makes it suitable for the everyday reader. An insight on how and why Christian religion came to us the way we know it and on the dichotomy between faith and reason through the centuries. Finally, a reflection about hope as the answer to the doubts and uncertainties that most Christians experience at some point in their lives.