The celebration is primarily a new Celtic fire festival, midsummer representing the midst of summer, and the shortening of the days on the gradual drive to winter months. Midsummer is customarily celebrated about either the 23rd or 24th of June, although longest evening actually comes on the Twenty first of July. The importance of the morning to our forefathers can be monitored back plenty of decades, and many gemstone circles along with other ancient monuments are generally aligned on the sunrise in Midsummer's Day. By far the most famous alignment is that in Stonehenge, where the sun's rays rises over the heel rock, framed from the giant trilithons upon Midsummer morning.