In this message, we explore the question that echoed through the crowd in Acts 2: "What does this mean?" Through a deep dive into the parallels between Mount Sinai and the Day of Pentecost, Pastor Troy uncovers how God's presence moved from thunderous fire on a mountain to intimate fire resting on each believer. Discover the difference between knowing about God and experiencing Him personally through the Holy Spirit. With historical insight, scriptural depth, and a call to joyful boldness, this sermon challenges us to live out what we believe—transformed from the inside out.