What is animation canceling all about in Blade & Soul?

What is animation canceling all about in Blade & Soul? - Head of wild big rhinoceros with gray skin and tusk standing amidst blurred grass blades in forest on summer day

I've seen this mentioned more than once but I'm not exactly sure what it is or how it works. Can someone explain?

What is animation canceling?
Why animation cancel? What advantages does it give over not canceling?
Is it more applicable for certain classes or is it class agnostic?
How do you do it? How do you know if you're doing it properly?

blade-and-soul

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What is animation canceling all about in Blade & Soul? - Selective Focus Photography of Leaves With Water Drop

What is animation canceling all about in Blade & Soul? - Closeup Photo of Green Grass Field

What is animation canceling all about in Blade & Soul? - Yellow Pikachu Plushmascot

Animation Canceling

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