The Vatican established a number of "World Day" observances: World Day of Peace (Jan. 1); World Day of Prayer for the Sick (Feb. 11, Feast of O.L. of Lourdes), World Day of Social Communication (7th Sunday of Easter, but often pre-empted in this country by the Bishops' Appeals!). Tomorrow, the Feast of the Presentation of the Lord ("Candlemas Day") is the World Day for Consecrated Life: a day to recall the importance for the Church that there be people who express something rather particular about the Church's own mystery as Bride of Christ. So it's "our" special day. A good day to pray for vocations, too!