Catholics take the Incarnation MUCH more seriously than Protestants do. And that’s a proposition that the overwhelming majority of Protestant theologians will agree with.
The Catholic Church is sacramental. Bread, wine, water, oil, salt, etc. The Catholic Church is liturgical. Gestures, a prescribed text, etc.
The relics of the saints are honored because the body is the temple of the Holy Spirit—as SAINT PAUL teaches. The bodies of the saints were the instruments by which they came to know God, and to love and serve him through prayer, teaching, preaching, acts of charity, etc. Someday, the bodies of the saints—and everyone else—will be raised from the dead and enter, reunited with the soul, into eternal life. In honoring the saints—including their relics—Catholic affirm their faith that the BODY of Jesus was the temple of the Holy Spirit, and that the BODY of Jesus was the instrument by which God brought his truth into the world, and manifested his love through healings and other acts of charity. By honoring the bodies of saints, who will rise from the dead, Catholics affirm their faith in the Resurrection of Jesus.
Catholics take seriously God’s decision to use the material creation as an instrument of salvation—the BODY of Jesus, the matter used in the sacraments, the BODIES of those who marry, etc.
It is no accident that the Catholic Church teaches the truth about marriage, while the Protestant churches have largely capitulated on divorce, sodomy, contraception, and fornication. The Catholic Church has a profoundly greater appreciation than Protestantism that man is a composite of body and soul, that God has written messages in our BODIES concerning how charity is to be lived out in the course of our lives, and that God entered into a nuptial union with his material universe by becoming man.