A reflection from Caryll Houselander:

A seed contains all the life and loveliness of the flower, but it contains it in a little hard black pip of  a thing which even the glorious sun will  not enliven unless it is buried under the earth.  There must be a period of gestation before anything can flower.

If only those who suffer would be patient with their earthly humiliations and realize that Advent is not only the time of growth but also of darkness and hiding and waiting, they would trust, and trust rightly, that Christ is growing in their sorrow, and in due season all the fret and strain and tension of it will give place to a splendor of peace.   (Caryll Houselander, The Reed of God, p. 36)