Patterning spells allow a mage to completely transform a target into something else that falls under the Arcanum’s purview. A memory can be replaced wholesale (Mind), the mage can turn herself (or a target) into an animal (Life), or she can teleport by “rewriting” her own location (Space). A spell that transforms the target into something that falls within the Purview of another Arcanum, like transforming into a living pillar of fire (Life and Forces), requires a mage to know the Practice of Patterning for the destination Arcanum.