Yes! I'd say the Key is perfect ^u^ and like I said, you can still utilize the idea of reading minds, just instead of being labeled directly as mind, it is achieved through creatively utilizing the more abstract reaches of an element. A similar idea to this would be using a core focus of Shape/Earth to control bones based on Shape's note of Root and abstract of Stability as well as the concept that bones are made of minerals, minerals found in the Earth, from which the life that holds these bones originates. It all comes together in a wonderful, chaotic cycle!