This all just sounds like the biggest collection of book themes ever, and I literally have no clue of what this could be. I'm thinking it's something that is a very serious subject that's preached often. Its something repetitive and maybe it is done under some kind of false pretense. It's something that everyone is aware of but isn't ever really talked about, or people don't like to admit it. It's something that you can easily get to yourself but can't easily be given to you by someone else. I'm just writing down what I'm getting from the riddle.