Idea in Progress; Forgive my Unsophistication

I believe God exists because we need him to exist. There is an inseparable bond between things and the need for things. Nature does not create a need unless there is something to satisfy it. If there were no such thing as food, we would never get hungry. If there were no such thing as light, we wouldn't have eyes. If sound did not exist, we wouldn't have ears. But light exists, otherwise we would never need to see. Sound exists; otherwise we would never need to hear. Food exists; otherwise we would never get hungry. Similarly, God exists; otherwise we would not have this burning hunger to know him; we would never have developed this deep sense of yearning for both immanence and transcendance.