This document describes an object lesson about prayer using the metaphor of heaven's mail room. It explains that in the mail room, angels receive prayer petitions, package blessings in response to prayers, and deliver them to earth. However, in the acknowledgment section, where people are supposed to send thanks to God, only one idle angel works because few people send thanks. The document provides suggestions for adapting this lesson for youth and lists examples of famous prayers in the Bible. It promotes purchasing an e-book with more object lesson ideas.