In this sermon, the speaker discusses the concept of prayer and its importance in our lives. They emphasize the idea that prayer is like entering a house, where we come in to receive from God and go out to serve others. The speaker shares personal experiences and encourages the audience to give thanks to God in everything. They also mention different types of prayer, including private prayer, corporate prayer, and flash prayers. Overall, the sermon highlights the significance of prayer as a means of communion with God, a source of strength and joy, and a pathway to victorious living.