Christendom

The beginning of Christendom is, strictly, as a point out of time.  A metaphysical trigonometry finds it among the spiritual Secrets, at the meeting of two heavenward lines, one drawn from Bethany along the Ascent of Messais, the other from Jerusalem against the Descent of the Paraclete. That measurement, the measurement of eternity in operation, of the bright cloud and the rushing wind, is, in effect, theology.

Charles Williams
First Paragraph of "The Descent of the Dove" (1939)