The reason I chose 21 days because it take around 21 days to start a habit. I just chose a area of my life I wanted a breakthrough in,gathered all the audio programs I could in that area and listened to them all day at the same time appllying the priciples everyday I am still doing it now . I am going to continue none stop however long it will take to get my breakthrough it been so far the best thing I ever done.Everybody see and can tell the difference but they do not know what I am doing, that one thing I learned the hard way do not let people in your business when it comes to this stuff at least until you attracted the right people to you.