In meditation, Taoists observe nature to mimic its patterns in their bodies. In the depths of winter, the water element sinks into the earth and finds stillness.
In the body, the water element relates to the kidneys, and other fluids, including the bone marrow.
During winter, we can sinking our awareness deep into our bones and bone marrow.
One can look at the bones in an anatomy book, slap the bones gently, and massage areas where the bones protrude (tips of fingers and toes, knees and elbows, and the hip bones.)
Then, in sitting meditation, standing meditation, yoga, or tai chi, tune into the bones and express gratitude.