Here is a recent paper by a young Philo scholar, Deborah Forger (glad some youngsters are engaging with Philo). And when I say scholar I mean scholar — not to be confused with many who are merely “regurgitation generators” for some trendy ism or other. Though officially listed here behind a paywall, the paper is freely available here. (Speaking of Philo I’m in the process of finishing up a short review of this new book).
Philo’s soul performs a distinct soteriological purpose. Partaking directly in the divine essence, yet simultaneously placed within the dust and clay of human materiality, the soul functions as the instrument or agent by which humanity escapes, or is saved from, the material world.