The classical incarnational view of spirituality recognizes the validity of both the divine and the human in our struggle to be a spiritual people. There is both a negative and a positive side to spirituality. Through the negative, we assert the necessity of rising above life to encounter God through self-abandonment and quiet. In the positive, we meet God in the responsibility of life, in the process of history, in the issues of the day. One without the other is incomplete. . . . We must learn, then, not to have a spirituality, something we turn on at a particular place or time, but to be spiritual, as a habit of life, a continuous state of being.
-Robert Webber, Ancient-Future Faith: Rethinking Evangelicalism for a Postmodern World (Grand Rapids: Baker Books, 1999), 137-138.