If you wake up one morning and find a hole in one of your teeth, sugar demons did not do it. If you eat a lot of spices, you should brush more often. Spices contribute to bad breath. All this demands that you have a narrowly defined way of keeping your mouth happy. If you allow laziness and indifference to creep in, then you should expect to have a swamp in your mouth.
Truth requires a consistent set of rituals too.
It requires constant diligence in examining the things that God created and investigating how he has interacted with his creation since the beginning of human history. This helps you distinguish God's truth from mere opinion. Truth forces me to know that I am dirt, therefore I am subject to whatever created me. But I can ignore that truth and cease to wrestle with the important questions that being human brings. These questions will always be there for this person reminding them that devising your own belief system pales in comparison to God's Holy law and will.