"I never tire of repeating those words of Benedict XVI which take us to the very heart of the Gospel: ‘Being a Christian is not the result of an ethical choice or a lofty idea, but the encounter with an event, a person, which gives life a new horizon and a decisive direction’” (Pope Francis, Evangelii Gaudium, 7)
Yankeesouth is right in bringing up the Baltimore Catechism. The Church presents the reason we are made, and by the disclosing event that Christ provides - the soul learns for what reason is the truth about their own reason. Only that if their reason is oriented to the utilization of wisdom.
Wisdom is utilized to perfect the soul, that it may make the best use of the knowledge of God and God, in turn, may make the best use of the soul. The effect, if the state of grace is preserved, is a continual growth from the potential of the baptism of being like the Son of God - thus made perfectly actual when the soul passes on.