This is the remarkable story of the sickly St. Margaret Mary Alacoque, the messenger chosen by Our Lord to convey the wonderful promises of His Sacred Heart. This story explains how a holy French nun-- who experienced a painful childhood, sickness, and suffered being gossiped by her sisters in the convent-- was chosen to proclaim the revelations of the Sacred Heart of Jesus and the Great First Friday Promise. St. Margaret Mary's story shows how Our Lord chooses the weak to confound the strong, and He gives strength and consolation when it is most needed--her story is a story for all readers to have hope for eternal joy!