Musashi Miyamoto&rsquo;s &quot;The Book of Five Rings&quot; is a classic Japanese text of samurai sword strategy written around 1643. Yet, it is so much more than just a manual on how best to wield a sword. The principles discussed in Musashi Miyamoto&rsquo;s masterpiece can, in many respects, be applied to life as a whole. &nbsp;Even though most of us today may not carry around a samurai sword on a daily basis, a reader can still find great value in the observations of this great, innovative, and eccentric samurai. Musashi developed what is called <i>ni to ichi ryu</i> or the &ldquo;t<i>wo as one way</i>.&rdquo; In short, it is Musashi&rsquo;s preferred way of fighting with two swords simultaneously, instead of the traditional, two-handed fighting style of Japanese samurai. &nbsp;We can find meaning in Musashi&rsquo;s text beyond that of just sword fighting because, in both in Japanese and in other cultures, the sword is often used as a comprehensive metaphor for life.