The character for “YU” is formed by a quarter-circle in the upper left, a horizontal line representing phenomena, and a small circle positioned at the same point as “YO” (4), “HE,” and “YU.”
This signifies the core intention of pulsating and gushing forth with fourfold nature (expansion and contraction, particle and wave) (YO), directionality (HE), and transformability (YU), all set against the backdrop of phenomenal power.
In Japanese, “YU” shares the same sound as “Yu” (hot water). This core intention is similar to the state of hot water that has been boiled by adding heat. Imagining this heat source, the origin of the energy, as being provided from the latent realm, helps to visualize the state of gushing forth with pulsation and transformability.