 It offers advice, largely to the lay community, on spiritual and sacramental matters, charitable donations, marriage, and other subjects.Here Anastasius reveals a distinctly personal tone and offers a window into the day-to-day existence of ordinary people.It is especially significant because it is an eyewitness account of the expansion of Islam into Sinai and Egypt, which were predominantly Christian, and of the effect that Moslem domination had on Christian life and beliefs.