Chaos magic is magic without limitations. The rule is that there are no rules. You choose what the rules are, you choose everything. “Do what thou wilt shall be the whole of the Law.” It is a form of no holds bared magic. “Nothing is true, everything is permitted.” Chaos Magic deals with subjective reality rather than objective reality.
Chaos magic works with metabelief. It is the belief that belief itself is only a tool for achieving effects and not an end in itself. It means that you can believe anything you want, but it is the belief alone that has power. It is the idea that belief is nothing more than a state of mind, and as such, can be manipulated by the will. Magic is the act of causing change in accordance with will, whether it be lower will or higher will. It is the will that moves the energy of reality.
Belief is a psychological state that can be deliberately self-manipulated, although it has the power to shape our own reality, and sometimes other people’s reality as well. It is the means not the end, the vehicle not the destination. Any object that you use and any belief that you choose is just a means for magic to work its effect. Hence it is the most powerful form of magic in the universe because it involves and transcends all other forms of magic. Chaos is the creative principle behind all magic.