Sometimes when we see another's actions, we see ourselves all to clearly as that person mimics what we have often done. Sometimes that view is uplifting, and sometimes that view is disconcerting showing you the error of your ways.
That happened to me today. A person reacted to a situation exacly as I would have reacted, but since I was in the receiving end of this action, I noticed how challening and hurtful that reaction can be. I never realized that before--what I thought was helpful behavior actually can be oppressive behavior to the receiver. That was another one of those humbling lessons in life.
Looking at my friend's response was like looking into the mirror at myself, yet understanding the ramifications of that response was a humiliating experience because I could see how responding that way could hurt and harm others. This experience will lead me to finesse my ways so I don't create a similar set of harsh feelings and results.
It's difficult to see ourselves, but we can better ourselves when we notice our ways good or bad in others. For example, I witnessed another person having courage to do something that I often do. As I watched the positive results from the courage the person displayed, it strengthened my resolve to act courageously in similar situations--it's the right thing to do.
On our journey of being the best we can be, listening to and observing others with care, patience, compassion, and respect is a great teacher about what to do and what not to do. Onward.