Humanity's obsession with certainty has been the principal driving force in the evolution of every religion and religious practice. From deepest antiquity to the present, and across all cultures and civilizations, this has been so. The God Thing reveals the reasons for this assertion. God-given answers turn out not to be enough. Neither do those provided by science. The God Thing reaches beyond both, from the Big Bang beginning of the universe to one billionth of a second after its end!