“Since man is ordered in regard to his body under the celestial bodies, in regard to his intellect under the angels, and in regard to his will under God — it is quite possible for something apart from man’s intention to happen, which is, however, in accord with the ordering of the celestial bodies, or with the control of the angels, or even of God. For, though God alone directly works on the choice made by man, the action of an angel does have some effect on man’s choice by way of persuasion, and the action of a celestial body by way of disposition, in the sense that the corporeal impressions of celestial bodies on our bodies give a disposition to certain choices. So, when as a result of the influence of higher causes in the foregoing way a man is inclined toward certain choices that are beneficial to him, but whose benefit he does not know by his own reasoning, and when besides this his intellect is illuminated by the light of intellectual substances so that he may do these things, and when his will is inclined by divine working to choose something beneficial to him while he is ignorant of its nature, he is said to be favored by fortune.”

Thomas Aquinas
Summa contra gentiles, Book 3, Chapter 92

Cum igitur homo sit ordinatus secundum corpus sub corporibus caelestibus; secundum intellectum vero sub Angelis; secundum voluntatem autem sub Deo: potest contingere aliquid praeter intentionem hominis quod tamen est secundum ordinem caelestium corporum, vel dispositionem Angelorum, vel etiam Dei. Quamvis autem Deus solus directe ad electionem hominis operetur, tamen actio Angeli operatur aliquid ad electionem hominis per modum persuasionis: actio vero corporis caelestis per modum disponentis, inquantum corporales impressiones caelestium corporum in corpora nostra disponunt ad aliquas electiones. Quando igitur aliquis ex impressione superiorum causarum, secundum praedictum modum, inclinatur ad aliquas electiones sibi utiles, quarum tamen utilitatem propria ratione non cognoscit; et cum hoc, ex lumine intellectualium substantiarum, illuminatur intellectus eius ad eadem agenda; et ex divina operatione inclinatur voluntas eius ad aliquid eligendum sibi utile cuius rationem ignorat: dicitur esse bene fortunatus;