Dear Farnaz:

I think you are misinterpreting St. Vianney's words. Here is the actual quote:

There are mothers who have so little religion or, if you like, are so ignorant that if they want to show off their baby to some neighbouring mothers, they will show it to them naked. Others, when they are putting on diapers, will leave the babies, for a long period of time, uncovered before everyone. Now even if there is no one present at all, you should not do this. Should you not respect the presence of their Guardian Angels? It is the same thing when you are feeding them. Should any Christian mother allow her breasts to remain exposed? And even if they are covered, should she not turn aside to some place where there is no one else? Then there are others who, under the pretext of being foster-nurses, are continually only half-covered. This is very disgusting. It is enough to make even the pagans blush. People are compelled to avoid their company in order not to expose themselves to evil thoughts.

St. Vianney is talking about the virtue of modesty. God is not offended by our nakedness; that is not the issue. In this passage St. Vianney is speaking about mother who show off their naked babies, and mothers who allow their babies to go around publicly naked, and mothers who who openly expose their breast and to leave their breast exposed even after nursing.

All this is about proper modesty. God expects us to be modest. As parents we must teach modest to our children.

The Catechism quotes from Galatians 5:22-23:

1832 The fruits of the Spirit are perfections that the Holy Spirit forms in us as the first fruits of eternal glory. The tradition of the Church lists twelve of them: "charity, joy, peace, patience, kindness, goodness, generosity, gentleness, faithfulness, modesty, self-control, chastity."

Modesty is not just a mere virtue, it is a Fruit of the Holy Spirit. Modesty is related to purity and in fact purity requires modesty. The Catechism states:

2521 Purity requires modesty, an integral part of temperance. Modesty protects the intimate center of the person. It means refusing to unveil what should remain hidden. It is ordered to chastity to whose sensitivity it bears witness. It guides how one looks at others and behaves toward them in conformity with the dignity of persons and their solidarity.

2522 Modesty protects the mystery of persons and their love. It encourages patience and moderation in loving relationships; it requires that the conditions for the definitive giving and commitment of man and woman to one another be fulfilled. Modesty is decency. It inspires one's choice of clothing. It keeps silence or reserve where there is evident risk of unhealthy curiosity. It is discreet.

2523 There is a modesty of the feelings as well as of the body. It protests, for example, against the voyeuristic explorations of the human body in certain advertisements, or against the solicitations of certain media that go too far in the exhibition of intimate things. Modesty inspires a way of life which makes it possible to resist the allurements of fashion and the pressures of prevailing ideologies.

2524 The forms taken by modesty vary from one culture to another. Everywhere, however, modesty exists as an intuition of the spiritual dignity proper to man. It is born with the awakening consciousness of being a subject. Teaching modesty to children and adolescents means awakening in them respect for the human person.

2525 Christian purity requires a purification of the social climate. It requires of the communications media that their presentations show concern for respect and restraint. Purity of heart brings freedom from widespread eroticism and avoids entertainment inclined to voyeurism and illusion.

2526 So called moral permissiveness rests on an erroneous conception of human freedom; the necessary precondition for the development of true freedom is to let oneself be educated in the moral law. Those in charge of education can reasonably be expected to give young people instruction respectful of the truth, the qualities of the heart, and the moral and spiritual dignity of man.

2527 "The Good News of Christ continually renews the life and culture of fallen man; it combats and removes the error and evil which flow from the ever-present attraction of sin. It never ceases to purify and elevate the morality of peoples. It takes the spiritual qualities and endowments of every age and nation, and with supernatural riches it causes them to blossom, as it were, from within; it fortifies, completes, and restores them in Christ."

It is a popular thing today, and even considered cute, to allow a baby to run around naked. It was apparently popular back in the St. Vianney's day as well.

While this may seem innocent, St. Vianney is suggesting the it is improper because it violates the virtue of modesty in our society and fails to properly teach our children proper modesty. Our children need to learn that the should not "unveil what should remain hidden."

This teaching to our children, and to ourselves, is not to suggest that that certain parts of the body should remain hidden because they are evil. There were some heretics in the first few centuries of the Church who had that sort of view that the body was evil.

We should not teach our children to remain covered because those parts of our bodies are evil or naughty. Rather, we are to teach our children the Godly Virtue of Modesty.

That is what St. Vianney is trying to do here.

God Bless,
Bro. Ignatius Mary