For six months, light has been decreasing, leading up to the solstice, the darkest time of year. Some of us have spent a few days, perhaps, reflecting upon the essence of what has been garnered over the past season. Now we move from the Elder tree to Birch. To glean the choice of Birch, we have to start with the time of the year. It is just a few days after the winter solstice, but this time is a major shift for those who attuned their spiritual life closely to the movement of earth and light.