120 Saint Margaret Mary’s account is powerful and deeply moving: “He revealed to me the wonders of his love and the inexplicable secrets of his Sacred Heart which he had hitherto kept hidden from me, until he opened it to me for the first time, in such a striking and sensible manner that he left me no room for doubt”. In subsequent appearances, that consoling message was reiterated: “He revealed to me the ineffable wonders of his pure love and to what extremes it had led him to love mankind”.
Source: Dilexit Nos (Vatican.va)