Sanctifying grace, in Catholic belief, is the very presence of divine grace within a person's soul. It's not a temporary gift but a permanent, life-changing infusion. This grace initiates a profound moral transformation, fundamentally altering one's heart and desires. It empowers individuals to cooperate with God's will, actively choosing good over evil. The process fosters spiritual growth, leading to a deeper relationship with God and a stronger capacity for love. Receiving sanctifying grace marks the beginning of the path to holiness, a journey of ongoing conversion and increasing conformity to Christ.