Ah, magick/magic! What is it? It is the effect of will to make changes, first in oneself, and then in one's surroundings. It is "cause and effect". Many years ago, when I was a teenager, I asked my witch teacher that question, "What, exactly, is magic?"
I wrote down what she said; here it is:-
"Throw a few seeds on to good soil. Add water and sunshine. Tend the plants carefully. Watch them grow. You cannot get much more magical than that!".
Magic is all around you, and is as natural as breathing. All you have to do is find it!