58 At the same time, we must never forget that the image of the heart speaks to us of the flesh and of earthly realities. In this way, it points us to the God who wished to become one of us, a part of our history, and a companion on our earthly journey. A more abstract or stylized form of devotion would not necessarily be more faithful to the Gospel, for in this eloquent and tangible sign we see how God willed to reveal himself and to draw close to us.
Source: Dilexit Nos (Vatican.va)