A pious association, otherwise known as a league of prayer in union with the Heart of Jesus, founded at Vals, France, by Francis Gautrelet, 1844. It owes its popularity to Henry Ramiere, S.J., who adapted its organization for various Catholic institutions, 1861. Its object is to promote the practice of prayer for the mutual intentions of the members, in union with the intercession of Christ in heaven. Three practises constitute three degrees of membership:

The general of the Society of Jesus is its moderator-general. The "Messenger of the Sacred Heart" is a magazine edited monthly by this association. Among 75 nations there are 1,900,000 subscribers. It is published in 38 languages: English, French, Spanish, German, Italian, Hungarian, Portuguese, Danish, Finnish, Flemish, Dutch, Polish, Greek, Rumanian, Lithuanian, Czech, Albanian, Catalan, Breton, Basque, Irish, Arabic, Chinese, Ruthenian, Croatian, Slovenian, Slovak, Tamil, Malayalam, Gujarati, Telugu, Canarese, Marathi, Togo, Malagasy, Fiji, Cree, Maltese.