At the foot of the mountain of purgation, a fundamental issue pertaining to salvation surfaces. How far can unaided human reason take us toward the blessed life? The answer provided is that it can only take us so far, perhaps only to the base of the penitential mountain. The blessed life cannot finally be attained by reason alone. To obtain forgiveness and reconciliation with God, one must ascend by faith and hope.
The problem with Plato, Aristotle, and the all the other ancient and modern pagan philosophers is that they can only take us so far. They cannot lead us to knowledge of the mystery of God the Holy Trinity. They cannot lead us to the atoning death of Jesus and his life-giving resurrection. For that knowledge, we need the revelation of God made known in the incarnation. Only this heavenly Wisdom born of Mary’s womb can lead us to the higher and more weighty matters pertaining to our existential condition. Reason has to be completed by revelation if we are to attain that for which all of us deeply long: saving knowledge of divine Love.
The way that leads to life is less a way of reason than a way of penitence, faith, forgiveness, and hope. Moreover, this way is not the way of disembodied contemplation of eternal verities so much as it is the way of embodied practice. We cannot think our way from heaven to hell. We must practice in faith and hope, relying on the promise of the love of God to forgive sinners.
Even if through penitence and faith we ascend to the blessed life, we will still never comprehend the ultimate mystery of the all things. No matter how pure and blessed, we will never be able to comprehend the full mystery of the Holy Trinity. It is enough for us to accept that the One God is Three, not to know how that is so. The way we come to know that this mystery is Love itself is by taking up our cross and following the Incarnate One on the way to the top of mount Calvary.