The whole validity of the physical Heart of Jesus as a natural symbol of the Person of the Word rests upon the fundamental truth of the hypostatic union. …the doctrine that there is one Person in Christ, while the two natures remain distinct and entire. The honor that is rendered to the Heart is that of adoration ( in Latin “latria”), since one is reverencing and relating to the very person of the Only-begotten Son of God, the Second Person of the Blessed Trinity, in the noblest part of His humanity.

“Updated Devotion to the Sacred Heart” by Rev. Walter Kern 1975, page 18-19