I have trained parkour five years. I saw this jump two year ago , it was a one big jump. I though it was impossible before but now I will make impossible to be possible . It is not some "leap of faith",it was telling myself I got ready . When you practice several times on the ground you will know that . My body told me that I could do it , when l was in the air . It was really awesome when making this art of motion . It is why I continue trying , training to know your body wisely .