this sounds very similar to something i heard of before called intelligent falling.scientists have know idea of what causes gravity, and they probably never will. it's a philosophical or theological question.I could say that god causes gravity. or love. or maybe all matter has automatically attracting telekinetic powers. I know that everything has fallen from the divine unity that we call god. so everything seeks back there. that's why there is gravity. the positive and negative earth's love each other because they have fallen from unity into the world of duality, so they try to merge, and the result is gravity.