Do you realize athletes need rest? How many people relax with the same concerted effort as when they run, lift, or swim? I believe taking time off training helps the body heal the little inflammations arising from exercise.
One suggestion when going through a rest cycle: look at yourself and commend yourself for all of your work. Is it me or can you notice your efforts more in rest? It just seems all the fruits from working out are more visible during the off cycle.