You love your arm. I am sure of it because if you were to lose it, you would be very afraid and upset. The same thing is true for your legs and most all of your body that is vital.
You wake up to the same pair of hands that you have watched your whole life. They are a vital piece of who you are, so is your legs and arms. We care about what state our body is in. It effects our sense of self.
But how often is the connection made that every other person you see feels that way about their body. They, too, call that physical flesh “them.”
What is even rarer is taking time to put yourself behind the eyes of people that pass by normally unnoticed by the conscious mind. But they are not just background noise, but individuals selves that possess a whole world behind their eyes, just like you.