Joseph Hinman develops the notion that belief in God, while not absolutely provable, is rationally warranted and that the experience is life-transforming and vital. He utilizes a body of empirical scientific studies that go back fifty years and draws upon sociological experts including Abraham Maslow, Robert Wuthnow, and Andrew Greeley. The huge body of work includes many important advances in this scientific work (such as the M scale) this allow for carefully study of mystical experience and offers a range of evidence that warrants belief. Arguments for God based upon personal religious experience have always been considered weak by both apologists and skeptics. This has been the case due to prejudices and misconceptions about the nature of religious experiences... A vast body of data demonstrates that religious experiences, what some call "mystical" and others refer to as "peak," have positive, long term effects so dramatic it can only be described as "transformative..". Religious experience is the effect of God has upon the human heart, thus, the Trace of God. Hinman establishes that the Trace of God and religious experience -far from being caused by or related to mental or emotional instability- has an impact that is not just positive and life-transforming but vital: that belief in God is rationally warranted.