Like all emotions, jealousy is habitual, which means that even though we have investigated the harm it can do and the merits of overcoming it — even if we are completely convinced — it will still rise up again out of habit. What we need now is a very strong antidote, and the antidote to jealousy is the practice of rejoicing.
Rejoicing is simply feeling happy when something fortunate or beneficial happens to someone other than ourselves. . . .
When someone becomes a vegetarian or donates money to a charitable organization, we can rejoice. We can rejoice in the virtue of people who have put their life on the line to help others, the Good Samaritan we hear about on the news. We can rejoice in the spiritual accomplishments of others, too. . . .
The positivity of rejoicing practice releases within us the qualities of intelligence, selflessness, generosity, patience, strength, and good-heartedness.— Dzigar Kongtrul, Light Comes Through