What is a mole, what does it mean? help

Need help undertsanding what a mole is , it's confusing me so much for some reason, could someone please explain this to me , thanks

It's a small mammal that lives underground and eats worms.

Or Avagadro's number of things(can be molecules, atoms or whatever). One mole of atoms has approximately $6.022\times 10^{23}$ atoms.

Yes but why in equations do teachers say 1 mole of an element and 1 mole of another element will result in 1 mole of a product , eg Mg + O > MgO

Yes but why in equations do teachers say 1 mole of an element and 1 mole of another element will result in 1 mole of a product , eg Mg + O > MgO

Yes but why in equations do teachers say 1 mole of an element and 1 mole of another element will result in 1 mole of a product , eg Mg + O > MgO

It is an animal that lives in a burrow underground.

It is an animal that lives in a burrow underground.

Just to correct myself a bit as I didn't pay much attention to the equation. In the reactants, one mole of Mg does indicate the number of Mg atoms but not when dealing with $O_2$, but we halved the number of molecules of $O_2$ as this would be equal to one mole of O atoms. However, on the products, MgO has a giant ionic structure and so we cannot regard MgO as either atoms or molecules, but one mole of MgO represents one mole of O and Mg ions within the structure.
Hope this makes


$Mg + \frac{1}{2}O_2 \rightarrow MgO$.

It's kind of making sense but I'm still not sure tbh, any other way of explaining it? thanks for helping btw.