In an odd way, I feel bad for those who have somehow managed to get through life, thus far, without health scares, major financial stress and the like. They have no idea how fragile their self-reliance really is; they are not aware of how dependent they should be on God and God alone.
When your body and abilities are failing you, believing in yourself will only get you so far. When you are literally depending on God to provide each breath you take, you realize the fragility of your existence and the power of His mercy and love.
One look at a picture of earth from space should give us a bit of perspective that sticks with us, and yet our egos stay intact.
Trust me; you aren’t all you need.