Rogation Days, like their distant cousins the Ember Days, are days set aside to observe a change in the seasons. Rogation Days are tied to the spring planting.
There are four Rogation Days: the Major Rogation, which falls on April 25, and three Minor Rogations, which are celebrated on the Monday, Tuesday, and Wednesday immediately before Ascension Thursday.
“Rogation” is simply an English form of the Latin verb rogare, which means “to ask.” The primary purpose of the Rogation Days is to ask God to bless the fields and the parish (the geographic area) that they fall in.
The Rogation Days were marked by the recitation of the Litany of the Saints, which would normally begin in or at a church. After Saint Mary was invoked, the congregation would proceed to walk the boundaries of the parish, while reciting the rest of the litany (and repeating it as necessary or supplementing it with some of the penitential or gradual Psalms). Thus, the entire parish would be blessed, and the boundaries of the parish would be marked. The procession would end with a Rogation Mass, in which all in the parish were expected to take part.
Like the Ember Days, Rogation Days were removed from the liturgical calendar when it was revised in 1969. Parishes can still celebrate them, though, very few in the United States do; but in portions of Europe, the Major Rogation is still celebrated with a procession.
As the Western world has become more industrialized, Rogation Days and Ember Days, focused as they are on agriculture and the changes of the seasons, have seemed less “relevant.” Still, they are good ways to keep us in touch with nature and to remind us that the Church’s liturgical calendar is tied to the changing seasons.
If your parish does not celebrate the Rogation Days, there’s nothing to stop you from celebrating them yourself. You can mark the days by reciting the Litany of the Saints. And, while many modern parishes, especially in the United States, have boundaries that are too extensive to walk, you could learn where those boundaries are and walk a portion of them, getting to know your surroundings, and maybe your neighbors, in the process. Finish it all off by attending daily Mass and praying for good weather and a fruitful harvest. (8:9)