Last October Pope Francis wrote a beautiful Letter on devotion to the Heart of Jesus—accessible on the Holy See website.  Here are a couple of quotations: “1. “HE LOVED US”, Saint Paul says of Christ (cf. Rom 8:37), in order to make us realize that nothing can ever “separate us” from that love (Rom 8:39). Paul could say this with certainty because Jesus himself had told his disciples, “I have loved you” (Jn 15:9, 12). Even now, the Lord says to us, “I have called you friends” (Jn 15:15). His open heart has gone before us and waits for us, unconditionally, asking only to offer us his love and friendship. For “he loved us first” (cf. 1 Jn 4:10). Because of Jesus, “we have come to know and believe in the love that God has for us” (1 Jn 4:16). ...60. The eternal Son of God, in his utter transcendence, chose to love each of us with a human heart. His human emotions became the sacrament of that infinite and endless love. His heart, then, is not merely a symbol for some disembodied spiritual truth. In gazing upon the Lord’s heart, we contemplate a physical reality, his human flesh, which enables him to possess genuine human emotions and feelings, like ourselves, albeit fully transformed by his divine love. Our devotion must ascend to the infinite love of the Person of the Son of God, yet we need to keep in mind that his divine love is inseparable from his human love. The image of his heart of flesh helps us to do precisely this.”