Why do we all lust for shit?

Like, seriously?! We lust for so much shit that we don't need. I've found a way to stop lusting for things that I shouldn't be eating, for example. And one example would be chocolate, as well as just about all other treats. I once ate stuff that was downright addicting, but somehow I convinced myself that this stuff was bad for me. Now I don't eat chocolate. Once in a while, I might have coffee or something sweet, but I've found a way around these cravings! But it's not only food that we lust for. In my honest opinion, almost everything that we lust for is wrong; we should instead lust for the deeper inner world that exists beyond traditional thought. Trust me, if you ever decide to give up at least some, if not all, of what you lust for, then you'll have a greater chance at having those deep thoughts that I have! It's truly something. Ever since I pretty much went vegan, I've had this inner peace in me that can't be fully described, can only be expressed and/or explained through yourself, if you make the change in your life for yourself. Perhaps the thing to take away is that you shouldn't keep being the same person that you are currently, but keep changing, until you reach that state where you don't even have to think! I assume that the word "conservative" is the correct word to use in this discussion; our society, at least the modern society, seems to be too conservative. And I'm not talking about conservative as in keeping traditional values; I'm instead talking about our way of life. We need to perhaps radically change our lives more often, making it much more different than it is usually.