It takes us to be on the outside to truly appreciate what is in the inside. Just like a goldfish being in a fish bowl; the water is transparent to him until he is taken out of the water.
This ties in closely to the context of empathy; being able to be an observer that truly appreciates and understand what it is like to in one the space of another. What is so powerful about empathy is that it is a peer-to-peer relationship, unlike sympathy which has an element of top-down. This allows discourse and objectivity without compromising one’s own stand.