These are essentials that pervade our thinking as East Asian medicine practitioners. And yet, as fundamental as they are, these three are not so easy to nail down. They are concepts from another time and culture, and they are present and unfolding in your experience as you read this. If you are looking for something materially tangible to the Western mind, there is a lot you’ll miss. If you are seeking something of an ancient mystery, you’ll also go wide of the mark.