In thanksgiving for favors granted.
I want you to read something.
On September 15, 1943, Bishop da Silva went, therefore, to Tuy and he asked Sister Lucy to write down the Secret “if she really wanted to.” But the seer, undoubtedly under the impulse of the Holy Spirit was not content with this vague order. She requested of her Bishop a written order, formal and perfectly clear – that is very important. The final Message of the Virgin of Fatima is, as previously were Her other requests, linked to marvelous promises. It is an exceptional grace offered by God to our 20th Century in order to meet its most urgent needs. But again it is necessary that the pastors of the Church have sufficient faith and docility to the designs of Heaven in order to be instruments of this outpouring of grace that God wants to bestow upon the world through the sweet mediation of His Immaculate Mother. In 1943, God desired that it be the Bishop of Leiria, who demanded of this messenger the writing down of the Third Secret. - Frere Michel de la Saint TriniteRead more at Unveiling the Apocalypse. It is very good information regarding the Third Secret of Fatima.
FYI: A 54 Day Rosary Novena, 27 days of petition, 27 days in thanksgiving, begins today asking Our Lady of the Rosary for the defeat of radical Islam. Details here. The novena ends on the feast of the Immaculate Conception. It seems to me the intentions of Our Lady of Fatima may be a better way to phrase the intention of the novena. Our Lady asked that the children 'pray the rosary every day for the end of the war and for peace in the world.'