The ``simple'' in ``simple'' means ``maintaining unity and not being tedious.'' ``Su'' means frugal and ``having important things in place and eliminating waste.'' ``Shinshin'' includes three hearts, and ``Shinshin'' is a true heart without falsehood. ``Jikishin'' is a pure and honest heart. “Seimei Shin” is a pure and bright heart. The secret to cultivating a beginner's mindset is to refrain from starting things, take care of them, keep your motto and ``book of the right'' close at hand, and always use them as pillars of your heart.