Bageshwar Dham Sarkar
Why do I feel unhappy when others are happy, and how can I become free of it?
Jealousy is a sign of pride; a devotee shares others' joy
Being unhappy at someone else's happiness is a sign of pride, while a devotee of Bhagwan feels happy at another's joy. The only way to become such a devotee is the grace of Hanuman ji.
This is the sign of pride: being unhappy on seeing another's happiness. And this is the sign of a devotee of Bhagwan: feeling sad at another's sorrow, and feeling happy oneself at another's joy.