Today is Gaudete Sunday, the next-to-last Sunday in Advent. Advent, like Lent, is a time of introspection; a time to prepare the soul and mind. Advent encompasses four Sundays in anticipation of Christmas and Lent does the same before Easter.
During three of the Sundays in Advent and Lent, the priest wears violet vestments — a symbol of penance. Gaudete Sunday is one of two holidays in the Catholic calendar where rose vestments — which symbolize joy — are worn, the other being Laetare Sunday, the third Sunday of Lent. (A nice summary on liturgical colors can be found here: http://www.ewtn.com/library/ANSWERS/LITCOLOR.HTM)
In the West, pink is a culturally difficult color. It’s OK for women, but often taboo for men. It takes a big man to wear rose, and they don’t come any bigger than B16. Biltrix has a great photo of Il Papa in his rose vestments. (In Thailand, pink has become associated with the king.)
A trend we’ve been seeing in the pews is parishioners embracing the colors of the season. At the Saturday vigil Mass, the pews were filled with men, women and children who had worked rose or violet into their Sunday (or Saturday) best. It’s a powerful external symbol of the inner states that Advent and Lent are meant to touch.