climbing onto other peoples skin is like saying walking a mile in other peoples shoes. What Atticus is saying is seeing what the other peoples point of views in certain topics. The admonition to walk a mile in someone else’s shoes means before judging someone, you must understand his experiences, challenges, thought processes, etc. You have to understand what the person is going through and what their dealing with before you judge them. None of us were born into the exact same situation, although some of our situations may be similar they are not the same. We have to see things from other peoples point of view so we can understand why they are acting the way that they are. It is really helpful to understand why people are doing things the way that they are, because if you just judge people right off the bat then you will never know what its like living in their shoes.