Through the practice of Taoist meditative alchemy, a practitioner may learn a practice called The Congress of Heaven and Earth. At this level, there is less to say and more to feel. It is a merging of spirit and matter; feeling the abundant energy of creation inside the body. The merging of alchemy moves back to the heart and the center of the being. When the peace and balance of Heaven is experienced on Earth and Heaven knows the excitement, passion, and variety of life on Earth; the joy of merging polarities is experienced by everyone aware of the process.
The “end”, or perhaps the beginning, of this spiritual path is the Union of Man and Tao. The teachers on this path say that it can’t be taught; that is needs to be experienced from the Tao itself. I believe it is a returning to our original nature; therefore, we are all capable of it and once knew how to be it naturally. It seems that the process is a stripping away of what is not us. This can happen at the moment of death, but the adept hopes to experience it before then and enjoy the accompanying level of enlightenment.
-From The Alchemist’s Tao Te Ching: Transforming Your Lead Into Gold https://www.amazon.com/dp/1718636970/ref=cm_sw_r_cp_api_i_p088CbSG15KS5