"Merlin's beard!" Professor Flitwick exclaimed after hearing Vizet's explanation.
He tried to digest what Vizet had said, then put his understanding into words. "So as long as I have a general idea of one of those Muggle 'scientific spells,' I can cast magic?"
Vizet did not outright reject Professor Flitwick's interpretation. "There's nothing wrong with putting it that way."
"We only need a general impression and understanding of a scientific theory. Then we can draw on the Muggles' shared belief to turn that impression into a magical effect."
"But that isn't enough..." he added. "Our general understanding of the theory is, at most, a key."
"The Muggles' shared belief in it is the lock. The key has to fit the lock before we can open the door and reach the treasure beyond."
"A key, a lock, a door..." Professor Flitwick narrowed his eyes, turning Vizet's words over in his mind.
He blinked, his expression shifting slightly. "So the key to this magic is the Muggles' shared belief, not us?"
Vizet thought of another way to explain it. "Imagine we're facing a fire. We can find a torch and light it, but the crucial thing is that the fire is there."
"Once we have that fire, the warmth and light it gives us, or its ability to drive away beasts, can all be seen as the resulting magical effects."
Noticing the subtle change in Professor Flitwick's expression, he added thoughtfully, "Of course, a wizard's understanding of the scientific theory is necessary too."
"Only then can we choose a torch to take a flame from the fire, instead of pouring water on it."
At that, Professor Flitwick's brow relaxed, and a smile appeared on his face.
"Vizet, I understand what you mean. I'm not so fragile that I'd be upset because the