This document describes an object lesson about prayer using the metaphor of heaven's mail room. It explains that in heaven there are three sections: 1) a receiving section where God receives prayers, 2) a packaging and delivery section where blessings are sent in response to prayers, and 3) an acknowledging section where people on earth send thanks to God, but it is often idle because few people send thanks. The lesson teaches that prayer is conversation with God and we should thank Him for answering our prayers.