Everything progresses in waves. The march of civilization, the progression of worlds, is in waves. All human activities likewise progress in waves — art, literature, science, religion.
Great waves succeed each other, and between these great waves is a quiet, a calm, a period of rest, a period of recuperation.
All manifest life seems to require a period of sleep, of calm, in which to gain added strength, renewed vigour, for the next manifestation, or awakening to activity. Thus is the march of all progress, of all manifest life — in waves, successive waves, [of] activity and repose. Waves succeed each other in an endless chain of progression.
Religion, like everything else, progresses in waves; and at the summit of each great wave stands an illumined soul, a mighty spiritual leader and teacher of men. Such a one was Jesus of Nazareth.