Office blog




Sansho-tetsugaku (san = three, tetsugaku = philosophy) is a way of thinking that interprets things in this Universe from three aspects. Otherwise known as “sho” (象), the three worlds are: “genshokai” 現象界 (the phenomenal, or visible, world), “gushokai” 具象界 (the concrete world, or that which seems visible but is actually hard to see), and chushokai 抽象界 (the abstract, or invisible, world).

“現象” (phenomenon), “具象” (concreteness) and “抽象” (abstraction) are terms that are frequently used, but whose meanings actually vary greatly, depending on the field of study in which you are engaged or the industry to which you belong. A single definition for each cannot be found. So, in this blog, I have defined these terms as indicated above, as an attempt to conceptualize the “key” to “∞.” And it is vitally important to be conscious of the “essence,” places where the three “象” intersect with each other, in the chart below.

I will explain by taking water as an example, for it is a substance indispensable to us and easy to imagine. It is ice in現象界 (the phenomenal world), water in具象界 (the concrete world), and steam in 抽象界 (the abstract world). Even though they look different, they are, in fact, all made up of H2O, the molecules composing water.

Let me explain in another way. The definitions above include implications which physicists often use: 現象界 = objective phenomena, 具象界 = observations based on study, and 抽象界 = principles and concepts. In this case, the parts where the two worlds overlap each other indicate phenomenalization, concretization and abstraction, and the part where the three 象 intersect with each other indicate “E=MC²,” the formula that represents the Universe.

When you try to grasp something, it is important to first understand to which of the three worlds (現象界, 具象界 or抽象界) it belongs, and then think about its essence. This process is the first step toward wakefulness.

The Phenomenal World
※The visible world
The Concrete World
※The world which seems visible but is hard to see
The Abstract World
※The invisible world
Example 1 Ice Water Steam
Example 2 Objective phenomena Observations based on study Principles and concepts