The greatest difficulty is to keep the heart with God, so writes Flavel in his classic work on union and fellowship with God. In his comprehensive and helpful book Flavel looks at what 'Keeping the Heart' means, why we should take commission seriously and particular times when we need to be especially wary of being distacted from our goal. He then shows how we can develop a greater ability in keeping our hearts in tune with God. His advice is timeless, sensitive and profound.. His writings are known for their practical nature.