Usually I would post Fr Laurent Demets' sermons in whole but the point he was making at the start with St Thomas Aquinas is just beyond my understanding. So here's an extract of Fr Demets' Sermon for the 19th Sunday after Pentecost.
Christ made all things new on the Cross but we need His light to see and understand it. We have to be renewed in the spirit of our mind, as Saint Paul says, and for that, we must accept the light.
I hear you saying that you have already accepted the light, since you are here, Christians among the most faithful, at the foot of the altar in order to receive the grace of God and to sanctify your souls. But don’t be so self-confident. Have you entirely accepted all the light of God? Are you sure that you don’t keep some dark recesses in your conscience? You might show some appearances of children of Light, but you are still walking in the darkness because you have not totally accepted Jesus Christ in your heart and in your mind.
Attending the Latin Mass doesn’t automatically give you the light of God. By the way, I want to take this opportunity to say few words about the recent news. Many of us are now rejoicing over the news from the Vatican regarding the liberalization of the old-rite. It will certainly be good but it will not change everything in a few days. First of all, because this freedom already exists by right even though many don’t believe it or say it doesn’t. Secondly, since there is the matter of Faith involved with the Latin Mass, don’t expect that the enemies of the Faith will accept and promote a Pontifical decision. The answer to the crisis of the Church doesn’t depend only on a judicial structure or an administrative decree even though they have their importance. The issue is: do we accept the light of God or do we refuse it? The Liturgical aspect is just the tip of the iceberg.
And for now, we still have to find the light of God and to renew our minds in the spirit of God. There is enough work until the end of our life, because the old man still remains in the deepest recesses of our very beings. To be renewed in spirit is not an easy task.
So, I encourage you to think about this: it is good to militate in favor of the Latin mass, but our first battle is within ourselves against the spirits of darkness who try to take possession of us. Since we don’t have the ability to size up the state of our soul, spiritual direction is deeply recommended by the entire spiritual tradition of the Church. In fact, it is absolutely impossible to make some progress in the spiritual life without spiritual direction. How do you think the Saints became so holy? By themselves? Certainly not. Having a good spiritual director – I mean a good priest, truly Catholic – which already excludes many – is a gift from God which helps us immensly in the renewing of our spirits. He will help you to catch the Light of God and to keep it firmly for the good of your soul.
May Our blessed Mother help us to accept this Divine Light so that we can be entirely and deeply renewed in the Spirit of God.