A child growing up with his parents to maturity will always know his parents. But if he hasn't lived with his parents for many years, he will hardly recognize them. He who is not in the Church will not recognize her in her different regimes.
The Catholic Church has been prepared for the coming of Christ. She received the fullness of Christ during his lifetime; and the Holy Spirit at Pentecost, receiving the power to extend that fullness of Christ throughout the world. Today, the Church looks quite different.
The problem of Evangelization, (already noted by Pope Benedict XVI, first in his circular " The New Evangelization," and in his address to the Brazilian Bishops, and repeated in his address to the Curia, and then completed by a memo of the Congregation on the Doctrine of the Faith on Evangelization), is clear. But many are still unable to point to the true Church. Many parishes, dioceses, and even religious orders are unable to prove their Catholicity.
The Fathers of the Church never hesitated to describe the Woman of the Apocalypse as the Blessed Virgin Mary. But it wasn't a popular idea. The Woman was always described as the Church, which she was. But Mary wanted to point out in Guadalupe that She was the woman of the Apocalyse, as if saying: "That's really me and don't ever doubt that." In 1531 we have entered into the era of the Apocalypse, "novissimis."The steps toward Christian perfection are : repentance, faith, hope then charity. The story of Fatima showed the inability of Christians to repent. Without repentance souls cannot have faith and enter the Church. No repentance, no faith, no Catholics. Both Vatican I and II were working on ecclesiology: what is the Church and how does one enter the Church? Both questions were anwered by "Lumen Gentium" and Chapter 12 of the Apocalypse. The feast of Our Lady of Guadalupe where she appeared as "Signum Magnum" is important because it teaches us that in the final regime of the Church on earth, she will have the added characteristic of being Marian. St. Robert Bellarmine mentioned so even before Vatican II. But we need faith to see it. The Church of the Apocalypse is a sight only for true Catholics.