Fostered in us by materialism, prevents to understand God. You can not regard God as a separate person, or as something that can be touched. And it's wrong to think that God is waiting for something from us, we need it. You can not come to him, you can know him and this is the most difficult! I'm not sure that God exists, but sometimes when I sacrifice myself for the sake of the good of another person it seems to me that my uncertainty begins to dissipate. Happiness to you!