Hi Parag. Even if you don't care for the author, you can still get value out of the mantra book. Also, something I remember he said during one of his workshops - 40 days was very significant - Moses, Jesus, and other Biblical figures were lost for 40 days or fasted for 40 days - so 40 days appears to be a time of spiritual growth. Most people, he said, don't maintain the discipline for forty days, they give up after a week or so - but if you can stick with the program, you will definitely see results.