Thaumaturgy

Thaumaturgy is the magic of working miracles. It is considered a fantastical art that is completely impossible to obtain. The reason is that magic draws its power from the Shadow Realms. The power of the Shadow Realms starts as simply chaotic and always trends towards complete entropy. It is possible for a sapient being to enforce its will over magic and bring order to the chaos, but these bonds are always incomplete and flawed as mortals themselves are flawed.

In order for magic to remain in an ordered and stable state in the mortal plane it must be constantly maintained. This is why thaumaturgy is an impossible art. Spirits drawn from the Shadow Realms can maintain magical order for a short time if it aligns with them. A mortal can maintain magic even longer, but eventually they will die or become absorbed into the magic.

A true miracle is one that is everlasting - magic can never obtain this goal.