By Leigh Mackenzie December 15 is the third Sunday in Advent. The winter solstice—the longest night of the year in the northern hemisphere—occurs December 21. After the solstice, days will gradually lengthen. Spring will arrive in three months, along with the return of vibrant life. Summer will be in six months. By then, our days will be swathed in bright sunshine until late in the evening. Spring and summer are a time of growth and production. The prophet wrote, “The people walking in darkness have seen a great light; on those living in the land of deep darkness a light