There are three days in the middle of this month - Wednesday the 16th, Friday the 18th, and Saturday the 19th - that the Church has kept for roughly sixteen hundred years.
Most Catholics alive today have never heard of them.
They are called the Ember Days, and if you grew up after 1970 there is a good chance nobody ever mentioned them to you. They were not abolished. They were not condemned. They simply stopped being required, and a practice that nobody has to keep tends to quietly disappear.
They are worth getting back.
What they are
Four times a year, the Church sets aside three days - always a Wednesday, a Friday, and a Saturday of the same week - for prayer, fasting, and giving to the poor. One set falls in Advent, one in Lent, one after Pentecost, and one in September after the Exaltation of the Holy Cross.
The Latin name is Quatuor Tempora, the four seasons or four times. The English "Ember" has nothing to do with fire; it is most likely a worn-down version of the Latin.
They are old. Pope Saint Leo the Great preached on them in the fifth century, and his sermons survive. By the time of Pope Gelasius at the end of that century, the Ember Saturdays had become the ordinary days for ordaining priests, which is why they carry a connection to vocations that has never entirely gone away.
Their roots go back further than that. The Romans kept seasonal agricultural observances - one at the sowing, one at the harvest, one at the grape vintage - and the Church took what was true in them and turned it toward God. The September set is the harvest one.
Why nobody told you about them
The 1969 revision of the liturgical calendar did not abolish the Ember Days. It handed them to national bishops' conferences, with instructions to adapt them to local needs and to determine their observance.
In the United States, no adaptation ever came. The days remained on the books with nothing scheduled on them, and within a generation they were gone from parish life entirely.
So this is not a case of recovering something the Church discarded. It is a case of picking up something the Church set down and never got around to picking back up.
What they are for
Three things, traditionally.
Gratitude for the harvest. The September Ember Days come at the end of the growing season. They exist so that somebody stops and says thank you for food that was not guaranteed.
Most of us no longer farm. That does not make the question less real. Something was harvested in your life this year. Some of it you planted and some of it happened to you. The Ember Days are where you count it.
Prayer for those being ordained. Because ordinations were held on Ember Saturdays for centuries, these days carry an ancient obligation to pray for the men who serve at the altar - the ones being ordained, the ones already ordained, and the ones who should be and have not said yes yet.
Penance, in the plain sense. Eat less. Give away what you would have spent. Do it for three days and notice what happens.
To that historic list, one modern addition fits naturally. In September, the school year has just started. Teachers, students, and everyone who has walked back into a classroom they are not sure about could use three days of somebody's prayer.
How to keep them
You do not need a program. Here is the whole thing.
Wednesday, September 16 - Thanksgiving.
Eat simply. One full meal, less at the other two, or whatever version of "less" is honest for your body and your work.
At dinner, go around the table and have each person name one thing this year actually produced. Not a wish. Something that happened. A child who learned to read. A job that came through. A friendship that survived something. A hard thing that turned out to be the door.
If you garden, or know somebody who does, put something on the table that came out of the ground this year.
Friday, September 18 - Fasting and almsgiving.
Fast, and abstain from meat as you would in Lent.
Then take the money you would have spent on the meals you did not eat, and give it away. Not to a general fund. To one specific person or household you have been walking past.
If you have children, let them see the envelope. Let them help decide where it goes. This is the day the practice becomes visible to them.
Saturday, September 19 - Prayer for vocations.
Pray for your parish priest by name. Pray for the men in your diocese's seminary. If you know a deacon, a religious sister, a permanent deacon candidate, pray for them by name too.
Then, before the day ends, say out loud the one thing from Wednesday's list that mattered most. Say it to somebody. That is the harvest, spoken.
Why this is worth your trouble
You are not fasting to lose anything. You are fasting to find out what you reach for when the thing you usually reach for is gone.
Three days is short enough that anyone can do it and long enough that you will notice. And it comes at exactly the right moment in the year - after the summer, after the harvest, at the point where the light starts going and the question of what the year actually amounted to becomes hard to avoid.
The Church put these days here on purpose. They have been sitting unused for fifty years.
Pick them up.
The Ember Days fall four times a year. The next set after September is in Advent, on December 16, 18, and 19, 2026.
Domus Formation builds daily prayer for Catholic households, aligned to the Church's readings and feasts. Every path in Domus walks through the Ember Days this month.