You might have experienced being treated badly by someone, or someone might show a rude manner or just a little bit impoliteness to you. Don’t get hurt, stay calm. They are revealing who they are not who you are. Don’t let their behavior bring you down. Rudeness is a false show of strength by a weak person. The weak ones have rudeness inside, and they will show what is inside. The strong ones have gentleness inside, so they show gentleness.
To stay calm means to remain strong in front of the weak one. To stay calm also means to become like a mirror for others to reflect themselves on you. They can see the pictures of themselves clearly only when the mirror is still.
Become a mirror like this. Don’t react. A cool mind reflect dignity and strength.