Xaosism (pronounced chaos-ism) is, simply put, the belief that the only way God's voice can still be heard is through truly unpredictable events such as quantum randomness.
As far as science has been able to determine, everything above the level of quantum phenomena is deterministic. Humanity may not be able to predict the future, due to a lack of measurement capabilities and a lack of processing power, but if one had complete knowledge of the physical laws of the universe, and of the current state of the universe, they could tell with certainty what will happen next.
God is the only entity with this knowledge and power, and it is blasphemy to think that they would need to interfere with the universe on a macroscopic scale in order to have their will be done. They constructed the entire history of the universe before knocking over the first domino of the big bang, so to speak. The only remaining avenue for God to touch the universe is through the few truly random situations that aren't even theoretically predictable from that initial starting condition.
When you've done all you can to evaluate a situation with your senses, your knowledge, your understanding of the world, and you're still uncertain what God's will is, this randomness is the only place remaining to look.
The very nature of Xaosism precludes a holy text or an ordered hierarchy such as in Catholicism. At the end of it all, everything tends towards chaos and disorder, and so each follower's personal embodiment of Xaosism will be different. However, here are a few common precepts:
1. Random choices are a sacrament. When the correct choice isn't clear, it should be made randomly. Even if the choice does seem like it has an obvious answer, you should take into account your confidence and sometimes act differently. If you're 90% certain something is the right answer, 10% of the time you should go the other way.
2. Noone is Good and noone is Bad. The chaotic nature of the universe is amplified by the chaotic nature of the brain and as a result every sentient being does both good and bad things. Some do more of one or the other, but that doesn't make them inherently good or bad, and this must be understood and accepted. You are good, bad, and everything inbetween, depending on the exact moment, and it's important to remember this when evaluating both yourself and others.
3. Order is a blessing and a curse. Life depends on order building itself from chaos. Without order at the microscopic level, life is impossible, because molecules can't come together to form proteins, organelles, cells, brains, and bodies. However, order is also death. With complete order at the macroscopic level, life is impossible because the strict regimentation necessary to maintain that order removes humanity. A mindless robot is no more alive than a bubbling pool of pre-spark amino acids.
4. In the end, Chaos wins. Eventually, the heat death of the universe will turn all of existence into a homogenous mass of particles. No matter what you do, you will lose against this. There may be temporary victories along the way, but victory is not preordained, even when you're doing what you consider to be right and good. Sometimes the best you can manage is to, in the words of Teddy Roosevelt, "fail while daring greatly".
There aren't yet (and may never be) any congregations of Xaosists, or regular church services, or anything of the like. The very nature of the religion itself is somewhat antithetical to that sort of structure. Right now, the best way to be a Xaosist is to simply follow the above precepts in your day-to-day life, and spread the good word to others.
In time, more writings on the philosophical and theological underpinnings of Xaosism will be added to this site, as well as a source of true quantum randomness to help with decision-making.