"With the only dynamic line of the hexagram placed in the center of the lower trigram we have an image of the position of the ego-complex in relation to the rest of the psyche. The magnetic ruler in line five represents the Self, isolated from direct physical involvement and dependent upon the dynamic ego to carry out the Work in the material dimension. The seventh hexagram, therefore, shows the Work from the ego's point of view.
Hexagram number eight, Holding Together, is the inverse of this image, and shows the Work from the Self's point of view outside of spacetime. There it is the dynamic fifth line ruler who is the focal point -- an image of the Self surrounded by its satellites. In that dimension the second line ego-complex is only another magnetic complex in the company of other magnetic complexes. Ideally, the lower complexes within the psyche should be magnetic in relation to a dynamic ego, but the ego is always magnetic in relation to the dynamic Self. From the Self's point of view all of its complexes are its magnetic "children," or "infantry." Hexagrams seven and eight should be studied together as reversed images to get a full comprehension of each.
Narutomi Hyogo said, "What is called winning is defeating one's allies. Defeating one's allies is defeating oneself, and defeating oneself is vigorously overcoming one's own body. It is as though a man were in the midst of ten thousand allies but not one were following him. If one hasn't previously mastered his mind and body, he will not defeat the enemy." Yamamoto Tsunetomo -- The Book of the Samurai