"It's simple manipulation!" There's a pause as Strange tries to think of how best to explain this, frowning slightly as it does. He could talk about etheric energies and veins of power until the cows came home, though Strange is pretty certain it won't mean anything to Yuya.

"Take a computer, for example. You know what it does and you know how to use it without really knowing how it works. If you took a computer apart and were told to put it back together, you wouldn't be able to do that. Nature magic is using a computer, Circle magic is knowing how to put the computer back together in the first place.