What is the inside story of 'Art of Living' organisation?

hey this all time asked questions about any organisation which works on the ground of sprituality .art of living is the course where it is mixed with yoga and sritualism, its some thing mixed with logic......so people do agree with this . But they say that in this world money has its own importantance,that's why they take this at the same time they show it clearly how the money goes how it distributes,among all channels. They also work for villagers poors and other needies.but one thing is good that they keep every thing transparent...I think that is the one solid reason why it is growing day by day