What's the difference between "es" and "esta"? And when can I use each of them? I've been told that they're used differently, but I don't understand how to different they're. Thanks in advance. I've been told that they're used differently, but I don't understand how different they're. Thanks in advance.

What is the major difference between "Mi amigos" and "Mis amigos" in Spanish? As far as I know they mean the same, but when should I use "mi" and when I should use "mis"?