Grace...

A supernatural gift, freely bestowed by God, that lifts the soul to the supernatural sphere, making it pleasing to God and rendering every action performed under the influence of grace worthy of God's acceptance. This grace may be external, such as good example or some miraculous occurrence that inspires us to good. Or it may be internal, either as a permanent quality abiding in the soul, when it is called habitual (sanctifying) grace, or by stirring up the mind and will, when it is called actual grace.

NAB definition