The Wheel of the Year

[icymist]

The Four Seasons are known as Solar Festivals, in that they mark a seasonal change caused by the Sun. The cross quarter days are marked by Fire Festivals and are usually celebrated as significant agricultural festivals. Together the Solar Festivals and the Fire Festivals make up the Wheel Of The Year. The Wheel Of The Year, is often broken into eight festivals, whether they are the eight Asatru Blots, Seasonal Festivals or Celtic Sabbats, and the observance of Solar energies at the solstices and equinoxes and the Fire energies on the cross quarter days, is a common theme throughout the world.

http://www.thewhitegoddess.co.uk/the_wheel_of_the_year/index.asp