I used to be deathly afraid of heights and got sick when I had to fly. I would have to take Zanax to get on a plane! Needless to say I didnt go very often!!! Then my best friend invited me to her home in Arizona for a visit. We went on a road trip to the Grand Canyon and I was totally awed by the majestic beauty of it. All of a sudden I realized I was looking DOWN over the rim and loving the sight! It was amazing. I just kept looking around and down and not getting woozy or anything! I havent had a problem flying or with heights since! I can even do ferris wheels and the Skylon at Niagara Falls!!! I cant explain it but so happy it happened!!