The contemporary Pagan holiday calendar is based on astrological timings. We celebrate the solstices, the longest and shortest days of the year, as well as the equinoxes when day and night are of equal length. And, we celebrate the halfway point between each solstice and equinox. These are called cross-quarter days in many traditions since they occur halfway through a quarter section of a year. If you visualize the year as a circle with two lines dividing the circle in half vertically and hor...