Most often the religious traditions do not speak of the sacred abstractly; rather they name it--as Yahweh, Brahman, Atman, Allah, the Tao, Great Spirit, God. This is not to suppose that all these names mean the same thing. But it is to suppose that the impulse to name something sacred flows out of the experience of the sacred. (Marcus Borg, Meeting Jesus Again for the First Time, The Historical Jesus and the Heart of Contemporary Faith)