if you think about it, we go against gravity every day. Just getting out of bed you have to fight gravity to sit up. You have to fight it to jump up to grab something on the top shelf if you are short like me . You have to defy in when you are sitting at your desk on the third floor of school. Gravity would want you down at ground level not learning physics three floors up. Therefor we have a love hate relationship with gravity. We depend on it to keep us grounded, but we want to get away from it to do our normal activities.