Haurietis Aquas §103

¹⁰³ Quite the contrary is the thought and teaching of Catholic theologians, among whom St. Thomas writes as follows: "Religious worship is not paid to images, considered in themselves, as things; but according as they are representations leading to God Incarnate. The approach which is made to the image as such does not stop there, but continues towards that which is represented. Hence, because a religious honor is paid to the images of Christ, it does not therefore mean that there are different degrees of supreme worship or of the virtue of religion."(106) It is, then, to the Person of the divine Word as to its final object that that devotion is directed which, in a relative sense, is observed towards the images whether those images are relics of the bitter sufferings which our Savior endured for our sake or that particular image which surpasses all the rest in efficacy and meaning, namely, the pierced Heart of the crucified Christ.