T.S. Eliot, "Four Quartets," The Dry Salvages  (1941)

That it is not heard at all, but you are the music

While the music lasts. These are only hints and guesses,

Hints followed by guesses; and the rest

Is prayer, observance, discipline, thought and action.

The hint half guessed, the gift half understood, is Incarnation.

Here the impossible union

Of spheres of existence is actual,

Here the past and future

Are conquered, and reconciled,

Where action were otherwise movement

Of that which is only moved

And has in it no source of movement