the.com/transfiguration

Turning a hedgehog into a pincushion on purpose, badly, in class.

means A dramatic change in form or appearance that reveals something's inner nature, often used of a glorified or elevated transformation.

from From Latin transfigurare, 'to change shape' — trans- ('across, beyond') plus figura ('shape, form,' the root also behind 'figure'). It entered English through religious usage describing a radiant change of appearance, then broadened into any striking transformation — long before it became the subject nobody could turn their matchstick into a needle in.

harry potter
McGonagall teaches it; it is notoriously hard to master
biblical origin
Jesus glowing on a mountain, witnessed by three apostles
real meaning
a complete change of form, not just appearance
key rule
turning objects into food cannot make them edible
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