In this talk, a monk from the Mahabodhi Society shares a reflection on the importance of cultivating a wise mind to achieve a truly prosperous life. Drawing from a story about a fierce demon, the monk illustrates how hatred, like a poison, harms the one who holds it, while loving-kindness (metta) brings about a profound state of peace and happiness. The talk delves into the Buddha's teachings on how to combat this "demon" of anger by developing love and compassion, understanding the root causes of our emotions, and practicing a four-step method to overcome resentment. The monk also uses the story of the Buddha’s kin to remind us of the importance of maintaining wholesome actions, both to achieve personal success and to build a peaceful society. He concludes by emphasizing that true prosperity is not merely about material wealth but about cultivating a mind rooted in wisdom, generosity, and loving-kindness. By consistently practicing these virtues, we can create a better future for ourselves and all beings.