Mercy means kindness. Grace means God's favor. We recieve mercy and grace when we go to God in prayer. This I believe is one reason why many Christians fail. Somehow, we forget where we can obtain the blessings of mercy and grace. These are found (the Bible says 'obtain') in prayer. God is gracious to extend His hand, but do we really take time to cultivate a real relationship with Him. To we 'come boldly unto the throne of grace' as the Bible describes? I guess a practical question could be asked: how goes your prayer life?