Sacred Heart
But, the devotion of the Sacred Heart of Jesus continued to be a private and mostly individual devotion. Jean Eudes (1602-1680) made it a public devotion, gave it a religious Office (needs explanation), and created a Feast for it. Père Eudes was the apostle of the Heart of Mary; but in his devotion to the Immaculate Heart there was a share for the Heart of Jesus. Little by little, the devotion to the Sacred Heart became a separate one, and on August 31, 1670, the first feast of the Sacred Heart was celebrated in the Grand Seminary of Rennes. Coutances followed suit on October 20, a day with which the Eudist feast was from then on to be connected. The feast soon spread to other dioceses, and the devotion adopted in various religious communities. It gradually came into contact with the devotion begun at Paray, and resulting in a fusion of the two.