This restful travail is full far from fleshly idleness and from blind security. It is full of ghostly work, but it is called rest, for grace looseth the heavy yoke of fleshly love from the soul and maketh it mighty and free through the gift of the holy ghostly love for to work gladly, softly, and delectably . . . Therefore it is called an holy idleness and a rest most busy; and so it is in stillness from the great crying and the beastly noise of fleshly desires.
Walter Hylton: The Scale of Perfection.