This prayer is thought to be originally prayed by St. Gertrude and adapted by St. Alphonse Liguori; he is considered the author because of its final formulation.
O Sacred Heart of Jesus, living and life giving fountain of eternal life, infinite treasury of the Divinity, and glowing furnace of love, Thou art my refuge and my sanctuary. O adorable and glorious Savior, consume my heart with that burning fire that ever inflames Thy Heart.
Pour down on my souls those graces that flow from Thy love. Let my heart be so united with Thine, that our wills may be one, and mine may in all things be conformed to Thine. May Thy will be the rule of both my desires and my actions.
ACT OF LOVE TO THE SACRED HEART
How great, O my Jesus, is the extent of Thine excessive charity! Thou hast prepared for me, of Thy most precious Body and Blood, a divine banquet, where Thou givest me Thyself without reserve. What hath urged Thee to this excess of love? Nothing but Thine own most loving Heart.
O adorable Heart of my Jesus, furnace of Divine Love, receive my soul into the wound of Thy most Sacred Passion, that in this school of charity I may learn to make a return of love to that God Who hast given me such wonderful proofs of His love.