Abraham represents the mind. In fact Abraham signifies passage. Therefore, in order that the mind, which in Adam had allowed itself to run to pleasure and to bodily attractions, should turn toward the ideal form of virtue, a wise man has been proposed to us as an example to imitate. Actually Abraham in Hebrew signifies “father,” in the sense that the mind, with the authority, the judgment and the solicitude of a father, governs the entire person. This mind then was in Haran, that is, in caverns, subject to the different passions. For this reason it is told, “Go from your country,” that is, from your body. From this land went forth the one whose homeland is in the heavens. ON ABRAHAM 2.1–2.
I am preaching on Genesis 12.1–4 next Sunday, so I am studying the Fathers and Doctors of the Church. Here, Ambrose presents a highly allegorized version of Abraham. A century after him, Caesarius of Arles would carry this vision on. It is interesting to see Ambrose give Abraham almost a philosophical (Platonic?) flare. Note the use of “caverns” as the place to leave.