I never swung an axe (no need where I live, the only thing I did to prepare for this winter was... close the windows, I can still walk around the house with lig

I never swung an axe (no need where I live, the only thing I did to prepare for this winter was... close the windows, I can still walk around the house with light clothes). And to me the thing STILL looks like sorcery... I have no idea how to hit the wood like that (I mean, the aim), but seeing each hit split the log is like... HOW???? It looks like the log split by itself.