"To pray is to change" - so says Richard Foster (Prayer, Hodder & Stoughton, 1992, p. 5).
How right that is, and how challenging! How often do we pray hoping that our prayers will keep us in just the same place? As I noted three posts ago, Foster also quotes Dom Chapman saying: "Pray as you can, not as you can't" (p. 7). That, too, is good advice.
Prayer plays a key part in all we do - if we let it.