For me, God referred to the mystery of life that could not be grasped by the human mind. But more recently I have come to realize that God does not name a reality in the cosmos at all. Rather it is a humanly created idea. It belongs to the human thought-world. It is a word by which we have tried to make sense of the physical world we live in.
This idea of God has a long history, which the remarkable scholar and former nun Karen Armstrong has written up as “The History of God”. God is an idea that has played an extremely important role in our evolving culture. It supplied an ultimate point of reference. It was the idea of God as creator and unifier of the universe that led to the rise of modern science, when mediaeval theologians tried to discover what they called ‘the ways of God’ by conducting experiments. It was they who laid the foundations of today’s empirical science.
But we also associated with this idea of God the values of love, compassion, honesty, and truth, because we find these make such moral demands upon us that they clearly transcend us. And though the idea of God had its beginning in our mythological past, it remains a useful word to refer to our highest values. As the New Testament asserts, “God is love”.