Today is the start of novena to St. Catherine of Siena. Her feast day is April 30th (Although in the post-conciliar calendar, it is celebrated the day before, which is April 29).
"O admirable St. Catherine, thou who didst merit to make of thy whole life the noblest holocaust, constantly inspiring thyself to a most ardent love for Jesus, the Lamb without blemish, and for His beloved Spouse the Church, whose rights thou didst strenuously affirm and support in troubled times, obtain likewise for us, the grace not only to pass unscathed through the corruption of this world, but also to remain unshakably faithful to the Church, in word, deed, in example, to see always, and to make others see, in the Holy Roman Catholic Church our anchor, as it were, in the storms of life, the beacon of light that points the way to the harbor of safety in the dark night of our times and men's souls. Obtain likewise the favors I request in this Novena (mention your intentions here) through thy powerful intercession. St. Catherine of Siena, pray for us."
A plenary indulgence on the usual conditions, when this prayer has been recited daily for a month. (S.P. Ap., Dec. 12, 1940)