In the case of Richard Foster, more is a very good thing. Once again Foster gives us a glimpse of spiritual disciplines through the lenses of the greatest Christian authors of history. This time he tackles the following subjects:. INWARD DISCIPLINES. meditation, prayer, fasting, study. OUTWARD DISCIPLINES. simplicity, solitude, submission, service. CORPORATE DISCIPLINES. confession, worship, guidance, celebrationIf you liked any of Foster's other books, you will like this one.