In Randy Alcorn's book "Happiness," he emphasizes the importance of focusing on the eternal rather than the temporary aspects of life. He draws on the biblical teaching from 2 Corinthians 4:18, which encourages readers to look beyond the visible world and its fleeting nature. This perspective helps individuals prioritize spiritual fulfillment and joy that transcends earthly circumstances.

Alcorn argues that true happiness comes from understanding and valuing what is unseen, such as faith, hope, and a relationship with God. By shifting our focus from the material to the spiritual, we can find lasting contentment and purpose in our lives, as the temporary hardships we face will give way to eternal rewards.