Argument from desire

The argument from desire is an argument for the existence of the immortality of the soul. The best-known defender of the argument is the Christian writer C. S. Lewis. Briefly and roughly, the argument states that humans’ natural desire for eternal happiness must be capable of satisfaction, because all natural desires are capable of satisfaction. Versions of the argument have been offered since the Middle Ages, and the argument continues to have defenders today, such as Peter Kreeft and Francis Collins.