Gregory I: "Learn the heart of God in the words of God"

“THE emperor of heaven, the Lord of men and of angels, has sent you His epistles for your life’s advantage—and yet you neglect to read them eagerly. Study them, I beg you, and meditate daily on the words of your Creator. Learn the heart of God in the words of God, that you may sigh more eagerly for things eternal, that your soul may be kindled with greater longings for heavenly joy.”

~Pope St. Gregory I ("the Great"): Letters, 5, 46.

St. Gregory the Great, by Bicci di Lorenzo.
Fresco, 1447; San Francesco, Arezzo.