Solstices and equinoxes are among the earliest religious festivals in the world. While there is no means of proving this, the signs are fairly indicative; ancient peoples were close watchers of the sky. Like many other species of animals, they used subtle clues to help them determine which direction to go at what time of year. Once agriculture developed, the sky contained the key of when to plant and when to harvest and when to thank the gods. It is no surprise that when the classical religions developed many of their festivals centered around, especially, the equinoxes and the winter solstice. Did they even bother with the summer?
The summer solstice tends to get lost in most modern festive calendars: it is summer, a time when we are busy relaxing—the crops are in the ground, firewood need not be gathered just yet, and life is perhaps just a tiny bit easier (except for those poor kids who still have to finish out the school year!). No cause for wonder that this particular holiday (traditionally Midsummer) is most evident in northern Europe where in just six months days will be dreadfully short and very cold. Midsummer celebrates light, fertility, and healing. Some traditions claim that witches meet on Midsummer as the sun begins, once again, its inexorable journey south (from the northern hemisphere perspective) nearly to disappear in the dark December.
The modern day Midsummer celebration held by reconstructionist Neo-Pagans is Litha. The name is borrowed from the Venerable Bede but the observance of the solstice is certainly authentic. It is often celebrated with fires to shorten the already apocopated night. It is the time when darkness is at bay. It is perhaps telling that the major religions have little to add to days of relatively carefree existence. People need their religion when things go bad, but when the struggle is minimized we might leave angry gods behind for a while and just bask in the ease of it all. But, as the Neo-Pagans and witches know, the longest day of the year also foreshadows the darkness that, until this day next year, will never again allow us as much light.