In the next post, I’ll illustrate the relationship, but for now let me just say that the square form of the flower knot (see right) is the basic unit of the mystic knot (see left). The Ashley Book of Knots (also known as Ashley’s or ABoK) has much to say on the topic of mystic knots, but not in those words (Ashley calls this knot family the Chinese butterfly knots), so let’s extract them and put them in one post for easy reference, shall we? I’m making pronouncements based on visual inspection and could easily be wrong, I’ll tie them and post the pictures later, correcting as I go if necessary…