AI OVERVIEW: Blessed are the pure in heart, for they shall see God, and the heart is the core of who we are, the control center of our mind, will, desires, and emotions. It is described as a reservoir; whatever fills it—what we watch, read, listen to, and the people we allow near us—will come out in how we live, making guarding the heart essential. Purity is made possible by Jesus, who cleanses the heart at salvation and begins sanctification; God provides protection, forgiveness, Scripture, the Spirit, prayer, and community to sustain it. As purity deepens, believers see God in nature, in history, in relationships, and in a growing understanding of Scripture, and see him face to face.