Star Alchemy involves merging the energies of the star quadrants, the four different aspects of the sky that we see, and then the center, in the head, behind the third eye. The energies of the center of the sky, the Big Dipper and the Pole Star combine in the center of the head (the Taoists call it the Crystal Palace or Upper Tan Tien).
Afrer merging and blending the energy of the stars in the Upper Tan Tien, we want to bring the combined energy down into the the navel or lower Tan Tien. Here, we can store the energy so it can nourish our organs and infuse our human nature with the energy of the stars.
The Alchemist’s Tao Te Ching: Transforming Your Lead Into Gold https://www.amazon.com/dp/1718636970/ref=cm_sw_r_cp_api_i_Q11xCb2VYZGAC