He's dedicated his life in trying to explain why the atrocities of the 20th century happened and how they can be prevented. I believe he sees our rejection of religion as part of the problem but he understands that the way religion has been presented in modern times (last few centuries) is completely alienating given the rise of science. So he uses science to attempt to give a new meaning to the Judeo-Christian underpinnings of western society. I'd say the biggest precursors to his work are Darwin and Carl Jung.