on whose branches (dogmas) birds (sublime souls) may safely alight

Borrowing from the opening lines of Origen’s Exodus homilies, Gregory likens the scriptural word to a seed: its proper exegesis is the resulting tree, on whose branches (viz., dogmas) birds (viz., sublime souls) may safely alight (In Hex. 64AB).

From Beginnings: Ancient Christian Readings of the Biblical Creation Narratives by Peter C. Bouteneff.
Amazing to compare with “The Book on the Windowsill” by Elena Shvarts.