Running like flying

I've always wondered why I love running so much. This morning as I was jogging, I was thinking about the difference between walking and running. When you walk there's always one foot that remains in contact with the ground. When you run, between the moment your left big toe kicks and your right heel lands, you're actually flying! You don't need a license to do that and no instruments either. This is probably why I find running so addictive and so attractive. More so even that skiing or biking, but that's true, I no longer fly when I practice these two sports!