Adapted from Summer Solstice Start of Summer? Not For Your Body. In the United States, many see the Summer Solstice as the beginning of summer.  However, as far as seasonal energies go, this is really the pinnacle of summer energy. Consider yin (dark, feminine) and yang (light, masculine) energy. The Summer Solstice marks the longest day (yang = day) of the year and the shortest night (yin = night).  Therefore, the Summer Solstice is the most ‘yang’ day of the year - the height of summer and yang-fire energy. Our body works in conjunction with the daily, monthly and [...]