The celebration is primarily the Celtic fire celebration, midsummer representing the midst of summer, and the shortening of the days on the gradual march to winter months. Midsummer is typically celebrated upon either your 23rd or even 24th of June, even though longest day actually drops on the Twenty first of June. The importance of your day to our ancestors and forefathers can be followed back plenty of years, and many stone circles and other ancient monuments are aligned to the sunrise on Midsummer's Day. By far the most famous alignment is that at Stonehenge, where the sunlight rises on the heel gemstone, framed with the giant trilithons about Midsummer morning.