It is difficult to realize the true Way just through sword- fencing. Know the smallest things and the biggest things, the shallowest things and the deepest things. As if it were a straight road mapped out on the ground. Second is the Water book. With water as the basis, the spirit becomes like water.
Water has a clear blue color.
By the clarity, things of Ichi school are shown in this book. If you master the principles of sword-fencing, when you freely beat one man, you beat any man in the world. The spirit of defeating a man is the same for ten million men. The strategist makes small things into big things, like building a great Buddha from one foot model. I cannot write in detail how this is done.