Happiness is the object of the existence of man. Happiness exists in proportion to the possession of and adherence to truth. The purpose of religion is to provide a framework to discover and adhere to truth. Certainly, the many people in this world who have successfully acquired truth without belief in God prove beyond a shadow of a doubt that the process is possible without belief in God. But is it optimal? In other words, the question is not whether truth—and therefore happiness—can be acquired without belief in God, but whether greater happiness is available through belief in God.
What does belief in God contribute to happiness? The differences over lack of belief include access to truth, rate of acceptance, and extent of truth.