As you go about your life on Dec. 21, take a moment to stop, reflect and consider the fact that due to the earth's tilt on its axis, you are experiencing the shortest day, and hence, the longest night of the year. Termed the "Winter Solstice," societies throughout history have ritually welcomed this astronomical phenomenon in celebration.  In modern cultures, these gatherings are still valued for emotional and spiritual comfort — giving people something to look forward to at the darkest time of the year, while also serving as a reminder to connect back to the earth’s rhythms. This is the goal of Jennifer Riley, a CMT, reiki master and certified yoga instructor who teaches eco-yoga for kid