This is similar to the theory that the Garden Of Eden described in the bible was at one time physically located at the head of the Persian Gulf, in southern Mesopotamia (now Iraq) where the Tigris and Euphrates rivers run into the sea; and in Armenia.
But regardless of whether or not any of this is true and is not mythological as most scholars consider it to be, I still have not heard of any mention of an astral peace garden as part of my own personal research, which was after all your original question.
Brian
