From the website FAQ:
Question: Most people would say the idea of silently meditating for three years is crazy. What would you say to them?
Answer: The average person in America watches 4.5 hours of television a day. That means by the time they are 65, the average person has watched 9 years of television. This group is taking three years out of their life and devoting it to understanding the mind and to discovering whether enlightenment is possible. Which of these seems more rational and a better use of time?