Solstice means ‘sun stand still'. Christians celebrate the birth of Christ this time of year & Yule is connected to the joy at the birth of the Sun God, child of the Goddess. It's a celebration of rebirth. It's a turning point in the year, when the days become longer & the darkness of winter is overcome. It's easy to understand why our ancestors held Solstice in such reverence. Their lives were governed by the sun, & the promise of its return would, of course, be sacred.