I don't have anything to say on the nature of consciousness , but I think truth, wisdom, etc. are meaningful because I make them so. As a collective, we make them so (but with different ideas, of course). My username means void or emptiness in Latin. It used to just be a kewl word but then I attributed my own meaning to it: we as humans live as if in a personal void that we fill with experiences, beliefs, thoughts, ideals. Paint a universe on your canvas and maybe it'll come to be that way. It's the same as painting yourself. Gaze into a mirror and see not just your literal appearance but the you that you are. You've known yourself all along, but perhaps you just haven't realized it yet.