My wife had a book on fasting. I read it and was motivated as I saw myself in the stories of patients and disciples who had their lives changed by fasting. I did many short fasts that led to a three-day complete fast. I spent three whole days in bed, getting up only occasionally to go to the bathroom and drink some distilled water. It was the most excruciatingly unpleasant, and painful, time I have ever spent. In the end my life was changed forever. If I had not read that book none of this would have happened. Change begins with your thinking.