Today, it’s Imbolc, (pronounced: Im-ulk or im-molc),one of the four principal festivals of the pre-Christian Celtic calendar.
It’s an old Celtic name for the spring festival on the 1st of February, now called St. Brigit's Day. In Belgium it's called Maria Lichtmis.
Here's a great article about St Brigit:
St Brigit: no better woman for the times we live in Brigit was also a “peace weaver”, the name given to distinguished women in Old European times. Like community activists and nurturers, Brigit wove the fragile threads of life into webs of community
Imbolc is a turning point in the year, a bringer of spring, yes it’s still cold but at least the sun is trying to shine through.
It’s a great time to let go of the old and to start new traditions. Imbolc is a time of new beginnings.
A few things you could do, starting today:
Spring clean your house and/or do a ritual smudging.
If you still have old greens in your home from Yule or Christmas, you could start a small ritual fire in your garden or fireplace.
At sunset this evening, light a few candles and ask spring to come. The magical new moon period is also a good time to let go.
To honor Brigit you could make a Brigit cross or Crios Brideog.
St Brigid, perhaps even more than St Patrick, was long at the center of popular devotion in Ireland. The most famous tradition associated with her is the St Brigid's cross. The St Brigid's cross was traditionally woven by hand each year from rushes, and the cross was hung on St Brigid's day by the kitchen hearth. The St Brigid's cross is both a cross and a svastikaor solar wheel and likely predates Christianity in Ireland.