The document describes an object lesson for kids about Jesus being the key. It involves using different types of keys and a lock to demonstrate that only one key fits. The lesson explains that while people may pursue other things for fulfillment, like education, jobs, wealth, or possessions, the only thing that truly matters is having a relationship with God through Jesus Christ, who is the only way or key to enter heaven. It emphasizes the Bible verse from John 14 that Jesus himself said he is "the way" to God and salvation.