It was back in 1999, my last year at University in Mexico City, when my philosophy teacher gave me a most valuable gift: Miguel de Unamuno's book, "Tragic Sense of ." He was convinced that I was a "natural existentialist," for our conversations outside the classroom often revolved around subjects such as anguish, mortality, the meaning of life, and the question about God. I was immediately drawn to it. The title alone made an impression on me, and gave me the intuitive feeling that its author and I would have a mutual understanding. I can honestly say that the reading of this book (years before I studied to become a logotherapist) was "auto-biblio-therapy."