Phil Beach Jr. emphasizes the concept of 'pliability unto placement' in his sermon on Ephesians 1:1-4, illustrating how understanding our identity in Christ is crucial for discovering our purpose. He explains that true pliability, which is the ability to be shaped by God, leads to our rightful placement in His plan. The preacher encourages believers to seek a close relationship with Jesus, as it is through this intimacy that we can align our desires with God's will. He highlights that our struggles often arise from trying to assert our own plans instead of yielding to God's guidance. Ultimately, Beach reassures that God has a specific purpose for each believer, and by being pliable, we can fulfill His good pleasure in our lives.