85 Nothing therefore prevents our adoring the Sacred Heart of Jesus Christ as having a part in and being the natural and expressive symbol of the abiding love with which the divine Redeemer is still on fire for mankind. Though it is no longer subject to the varying emotions of this mortal life, yet it lives and beats and is united inseparably with the Person of the divine Word and, in Him and through Him, with the divine Will. Since then the Heart of Christ is overflowing with love both human and divine and rich with the treasure of all graces which our Redeemer acquired by His life, sufferings and death, it is therefore the enduring source of that charity which His Spirit pours forth on all the members of His Mystical Body.
Source: Haurietis Aquas (Vatican.va)