Dịch Kinh Linh Thể

Quick post to share a wonderful book with all my Taoist friends.  The book is called Dịch Kinh Linh Thể and was written by professor Kim Định.  It goes in-depth into the origins of the I Ching.  Great news is, it is free downloadable book.  Here is the link. Dịch Kinh Linh Thể Enjoy everybody!