A bit about Summer Solstice:
Ancient Celts : Druids, the priestly/professional/diplomatic corps in Celtic countries, celebrated Alban Heruin ("Light of the Shore"). It was midway between the spring Equinox (Alban Eiler; "Light of the Earth") and the fall Equinox (Alban Elfed; "Light of the Water"). "This midsummer festival celebrates the apex of Light, sometimes symbolized in the crowning of the Oak King, God of the waxing year. At his crowning, the Oak King falls to his darker aspect, the Holly King, God of the waning year..." 13 The days following Alban Heruin form the waning part of the year because the days become shorter. The winter solstice, observed on December 21, was the shortest day of the year. The name 'Arthuan' is interesting in relation to Arthurian legend, as King Arthur was believed to have been born on the Winter Solstice in Castle Tintagel in Cornwall. Alban Arthuan ("The Light of Arthur"), also was referred to as Yule, Mabon, Jul, Saturnalia, or Christmas. This feast took place on December 21 and marked the longest, darkest night of the year. Alban Arthuan was a festival of peace and a celebration of waxing solar light. Many honored the forthcoming Sun child by burning an oaken Yule log, and honored the Goddess in her many Mother aspects. The Father God was also honored in various forms: as Santa Claus, the Old Sky God, Father Time, and the Holly King.