Infusion of grace (infusio gratiae)- God infuses grace into the human soul - the Christian now has faith and, with it, the ability to do good - this step is entirely God's work and is not done by man, and once a man has faith, he can never entirely lose it - however, faith alone is not enough for salvation; Faith formed by charity (fides caritate formata)- with man's free will restored, man must now do his best to do good works in order to have a faith formed by charity; and then Condign merit (meritum de condigno) - God then judges and awards eternal life on the basis of these good works which Aquinas called man's condign merit.