Around the first of February, something changes. Not dramatically. Not in a way that would survive description without sounding like the sort of thing written on a candle box by someone who sells linen smocks. But something shifts. The light has a quality it didn’t have in January — still thin, still cold, but coming at a different angle, lasting a few minutes longer each morning. You notice it in kitchens, in the quality of the afternoon light on a wall. You might feel, if you’ve been paying attention, slightly less like you want to be asleep by eight.
Your body is tracking the sun. It has been doing this for longer than it’s been a human body. The cross-quarter day between the winter solstice and the spring equinox — which falls around the first or second of February, depending on which calendar you’re using — has been marked in these islands since at least the Neolithic. Imbolc in the Irish and Scottish Gaelic tradition. Gwŵl Fair y Canhwyllau in Welsh — the Feast of Mary of the Candles, or Candlemas — imported on top of something older. The early Christians mapped the Feast of the Purification of the Virgin onto a date that was already significant for reasons that had nothing to do with Christianity.
The date was significant because of the ewes. Specifically, because around this time of year, heavily pregnant ewes begin to lactate in preparation for lambing. Imbolc — the etymology is debated, but i mbolg, “in the belly,” is the most widely accepted reading — marks the point in the agricultural calendar when the first signs of new life become visible in the livestock, even while the fields are still bare and the worst weather may still be coming. It’s not spring. But it’s the evidence that spring exists. It’s the first proof of the year that winter ends.
The tradition that attached itself to Imbolc — or rather, the deity whose festival it became — is Brigid. Saint Brigid of Kildare in the Christian tradition, one of the patron saints of Ireland, founder of the monastery at Kildare in the late fifth century, miraculous in the usual ways. Brigid the goddess in the pre-Christian tradition, daughter of the Dagda, patroness of poetry, healing, and smithcraft — the three things that require fire to work, which is why Imbolc is associated with flames.
The relationship between the saint and the goddess is one of those questions that generates more heat than light in Celtic studies circles. The honest answer is: we don’t know exactly where one ends and the other begins, partly because the people doing the recording — medieval monks — had reasons to blur the line, and partly because the distinction may not have been as sharp for ordinary people at the time as it is for us now. What we can say is that the figure of Brigid — healer, fire-keeper, protector of the helpless — has been continuously present in these islands in one form or another for at least fifteen hundred years, probably longer, and that her feast day is the first of February.
In the Irish tradition, Brigid’s crosses — woven from rushes, still made and hung in doorways today across Ireland — were traditionally made on the eve of the first of February, placed above the door of the house and the door of the byre to protect the household and the animals through the coming year. The form of the cross is not quite the Christian cross; it’s a four-armed pinwheel shape, older than Christianity in these islands, associated with the sun wheel and the turning of the year. Both explanations can be true. Usually are.
In Wales, the tradition is Gwŵl Fair — Candlemas — and the churches were filled with candles: every candle the household would use in the coming year was brought to the church to be blessed, which meant that for one day in February every church in Wales was blazing with light in the middle of winter. The symbolism is obvious. The light is coming back. Here it is in miniature, in wax, in your hands. Take it home.
February in the Forest of Dean, in the Welsh borders, in the south Wales valleys — it is grey, often wet, frequently miserable in a low-key persistent way that January at least makes theatrical. January can be dramatically cold, productively dark, excusably awful. February is just… trudging through to March.
But. The snowdrops are out. In the Dean they’re everywhere from late January — under the beeches at Nagshead, along the verges near Blakeney, in the old churchyards that have them in their thousands. The hazel catkins have been out since December but by February they’re properly gold. The dawn chorus, silent since October, starts up again — tentatively, a robin here, a great tit there — in the twenty minutes around first light. If you’re paying attention, the evidence accumulates.
This is phenology: the study of the timing of seasonal natural events. Robert Marsham, a Norfolk landyman, began keeping systematic records of seasonal indicators — first oak leaf, first swallow, first frog spawn — in 1736 and his family continued the records for two centuries. The naturalist Gilbert White was doing the same in Hampshire. These were not scientists by training; they were attentive people in particular places, recording what they saw every year, building a picture of how their local season worked that no single observation could give you.
Phenology apps have made this a community practice. Woodland Trust Nature’s Calendar has over 100,000 volunteers recording seasonal indicators across the UK; the database now covers decades and shows, clearly and without ambiguity, that the British spring is arriving earlier than it did in 1960. Not by a lot. But measurably. The snowdrops are earlier. The hazel catkins are earlier. The first frog spawn is earlier. This is the kind of data that individual observation can’t generate, and that changes what the data means — it’s not just a record of your local spring; it’s a contribution to understanding what’s happening to all of them.
The suprachiasmatic nucleus — a cluster of about 20,000 neurons in the hypothalamus — functions as the body’s master clock. It receives light input directly from the retina and uses it to regulate circadian rhythms: sleep, wakefulness, hormone release, body temperature, immune function. In the very short days of December and January, the body produces more melatonin, and cortisol rhythms shift toward the later end of the morning. By February, as day length increases, this shifts back. The body starts waking earlier. Energy returns incrementally. This is not a spiritual experience. It is a biological one that the spiritual traditions were tracking and ritualising for thousands of years before anyone knew what a hormone was.
Smart lighting that adjusts colour temperature through the day — cooler in the morning, warmer in the evening, synced to actual sunrise and sunset times — is trying, quite precisely, to give the suprachiasmatic nucleus the cues it expects. The celebrations said: the light is coming back, here is a ritual to mark it, here is a flame to hold while you wait. The smart bulb says: here is a simulation of the light that’s coming, calibrated to your latitude and the actual sunrise time, to ease your body’s transition. Both are responses to the same problem. Both work, within their own logic.
Imbolc doesn’t require you to weave a Brigid’s cross or light candles in a church, though both are good things to do if you feel like it. What it invites — what the tradition has always really been about — is attention. Paying attention to what’s changing, right now, in your specific place.
The Woodland Trust’s Nature’s Calendar app makes this easy and makes it useful: you’re not just noticing the snowdrops, you’re recording them, adding a data point to a decades-long survey. If you have a garden or any access to outdoor space, this is the week to actually look at what’s happening in it. The bulb tips coming up. The lichen on whatever surface it grows on. What’s changed since you last looked. Note it down. Do it again next year. If you’re in a city: the snowdrops in parks, the catkins on urban hazels, the dawn chorus returning in gardens — these happen everywhere, not just in forests. The season is happening around you. Imbolc is a prompt to notice it.
The light is changing. Your body knows. This is, in some old sense of the word, news.
What are you noticing this week? Snowdrops, catkins, first frog spawn, the quality of the morning light — put your location and observation in the comments. We’re building a record of when and where the season turns.
If you want to contribute to something larger: Woodland Trust Nature’s Calendar is at naturescalendar.woodlandtrust.org.uk — straightforward to use, fifteen minutes a week, and your records go into the national dataset.
Coming next on Folktech: Rush lights — the technology that lit ordinary homes for centuries before candles were affordable, and what making them tells you about light, patience, and the particular quality of attention that comes from working slowly with your hands.