"The Axiom of Choice is a strange and controversial thing in Mathematics. As an axiom, it can neither be proved true or false, it's a basic assumption of the system. The controversial question is whether it is a "reasonable" axiom to use. There's several reformulations, and they range from "that should definitely be true" to "that's ridiculous, there's no way that's true" and yet, if one is, all are. On top of that, it allows some bizarre constructions. And all from the fairly simple rule: if you have a bunch of collections, you can pick one thing from each. The trick that make it viable in normal mathematics is that you know that there is some way to do it, but you might not be able to write it down.
The mind of mage, though, can actually find the choice. This brings strange, abstract things to reality. Whether they are infinitely complex cuts, strangely structured thoughts, or geometries that violate the very concept of length and area." - Paradigm Explored Number and Shape - Page 11