The thing that affects our thinking more than any other occupation is the ancient hellenic philosophy. We learn to live in harmony with the mind, acknowledge the presence of the divine providence, leaning towards our divine self ...to our soul. There is nothing better that being a student of Socrates, Plato, Aristotle, Diogenes, Xenophanes, Zenon, Kleanthes, Plutarch, Poseidonios, Epictetos, Plotinos, Cicero, Isidoros, Proclos. Ancient hellenic philosophy formed the ancient theology and most of cases the piety on Gods, thus the science of the Gods, theology. Devotees of Hekate follow a philosophical school for another reason. Famous philosophers were devotees of Hekate and all of them were mystics.
Theurgy and Philosophy are two different methods which lead to the union with God.