The complex spiral of the heart is composed of inner segments that loop in a sacred helical form. The muscular helix of the heart homes the Spirit (Shen), and is the center of the body. Our DNA is of an identical shape, and is kept in the heart of every cell. Much like the heart is home to the spirit, the nucleus of the cell is home to the genetic instruction that allow life to live, grow, and reproduce. The helix reflecting the heart, and our DNA helps to illustrate the idea that everything in nature is reflected in something else.