Zulaikha and Gia talk about mudita, or sympathetic joy, in the context of how we are socialized into an individualistic culture. Mudita, which is delighting in the happiness of others, is one of the four immeasurables (or limitless qualities) in Buddhist psychology, which are qualities you can cultivate through concentration. These qualities allow you to expand and grow inward, and include equanimity, compassion, loving kindness, as well as mudita.