What is the role of the Holy Spirit in the Thomistic understanding of vocation?

What is the role of the Holy Spirit in the Thomistic understanding of vocation and how is the action of the Holy Spirit manifest when one is being called to religious state? Related questions: https://christianity.stackexchange.com/questions/70788/history-of-the-doctrine-of-religious-vocation-in-catholic-church https://christianity.stackexchange.com/questions/70787/catholic-doctrine-on-spiritual-vocation https://christianity.stackexchange.com/questions/71131/whether-ignatian-spiritual-exercises-are-good-for-the-discernment-of-vocation-ac