Dr Kumar Vishwas
What makes someone a true friend worth keeping?
A friend is pained by a friend's sorrow
Ram's standard of friendship is that a friend's sorrow must pain you. Those who are not pained by a friend's sorrow bring great sin on whoever looks at them.
As a friend, Ram says that those who are not pained by a friend's sorrow are sinful to look upon. If a friend is unhappy while I am there, whether Sugriv, Vibhishan or Kevat, that is wrong.