In his book "God's Promise of Happiness," Randy Alcorn discusses the innate yearning humans have for a state of happiness reminiscent of Eden. He suggests that this longing stems from our ancestors' experience of joy before the Fall, instilling in us a desire for a better existence beyond the struggles we face. Rather than accepting sin, suffering, and purposelessness as our reality, our hearts seek an ideal that reflects a past happiness.

Alcorn argues that if we were only products of evolution, we would lack the understanding or longing for such ancient joy. Our nostalgia for Eden illustrates a deeper truth about human nature; it reveals an innate sense that we were meant for more than our present condition. This longing signifies a hope for redemption and fulfillment that resonates within us all.