Difference between margin and position

actually I am beginner in web design and I took the concepts of margin and position properties in css.

So, my question is I can change the position of an element using css properties (position, top and left and so on). But also I realized that by increasing the margins and padding, I can also change the position of an element. But is this way good?

Or just there are different ways to change the position of elements? Which one is better?