The Sacred Heart moderated the excess of Jansenism, as the Church lurched through the Tridentine period:
170. In the modern period devotion to the Sacred Heart of Jesus underwent new developments. At a time when Jansenism proclaimed the rigors of divine justice, the devotion to the Sacred Heart of Jesus served as a useful antidote and aroused in the faithful a love for Our Lord and a trust in his infinite mercy symbolized by his Heart. St. Francis de Sales (+ 1622) adopted humility, gentleness (cf. Mt 11, 29) and tender loving mercy, all aspects of the Sacred Heart, as a model for his life and apostolate. The Lord frequently manifested the abundant mercy of his Heart to St. Margaret Mary (+ 1690); St. John Eudes (+ 1680) promoted the liturgical cult of the Sacred Heart, while St. Claude de la Colombière (+ 1682) and St. John Bosco (+ 1888) and other saints were avid promoters of devotion to the Sacred Heart.
Speaking for myself, I’m most appreciative of the Salesian approach to spirituality. Any readers have a favorite saint that directs you to the Sacred Heart? Check the Directory on Popular Piety and the Liturgy online at the Vatican site.
Catholic Sensibility 