In the pursuit of a healthy life, we often focus on our physical bodies -exercising, eating right, and staying hydrated. But what about the health of our hearts? A "sound heart," or Al-qalb al-saleem, is a heart free from blemishes and illness. It recognizes the true nature of life, a test for believers, a place for worship, and an opportunity to practice patience. In this way, a sound heart is essential for a fulfilling life, not just a healthy one. We must remember that despite our best efforts to preserve our physical bodies, they will inevitably decay. It is only through cultivating a sound heart that we can find true and lasting happiness.