20. The rhythm associated with the change from day to night, from one month to another, or of the seasons is often associated with various forms of popular piety. Such can also be true of particular days recalling joyous or tragic personal or community events. Above all, the “the feast days”, with their preparations for various religious manifestations, have contributed much in forging the traditions peculiar to a given community.
My sense is that for many in the US, secular events have taken over in the public consciousness, as well as personal anniversaries. I greeted a Dominican yesterday with “Happy Feast Day,” and she seemed surprised a lay person would be aware of it.
The full document, the Directory on Popular Piety and the Liturgy, is online at the Vatican site.