There's an absolutely huge responsibility to know and foster the right sort of ideas, primarily because ideas become reality. We become what we think. Or we create what we sync up.
It's the secret behind Murphy's Law. Once someone imagines that life is picking on them they literally start to create realities that line up with those ideas. And things literally do start to happen to them.
It's almost as if their thoughts go out and seek the kind of things that will vindicate or prove their suspicions. Their thoughts will quite literally send vibrations into the universe seeking affinities. It becomes sort of a closed circuit of self-fulfilling prophecy.
What most do not realize in that state is that if they are able to change the way they think, realities will line up differently for them. Our most valuable asset in the true sense of our freedom is found in our thoughts. We really are in charge of what we think about.