Chuck Smith explores the contrast between life 'under the sun' and life 'in the Son,' emphasizing that life on the human plane is filled with frustration, unfulfilled desires, and a sense of futility. He illustrates how pursuits for happiness, possessions, and wisdom ultimately lead to bitterness and emptiness. In contrast, life in the Son offers fulfillment, purpose, and spiritual richness, resulting in love, joy, and peace. Smith challenges the congregation to reflect on their choices regarding which plane they live on, urging them to embrace the truth of life in Christ rather than the lies of the world.