This paper records the linguistic origin of the Dual-Layer Universe Theory: a chain of experience in which a 'word-play attack' generating romantic misunderstanding, the lack of intonation in Fukui dialect, and the multi-layered linguistic structure of the New Testament converged into the insight that 'one sound can hold two meanings simultaneously' — becoming the prototype for 'one space containing two universes simultaneously.' This discovery was diagnosed as mental illness. The paper demonstrates it was a profound insight into the deep structure of language, showing that linguistic polysemy and cosmic multilayering share an identical structure.
Yoshimitsu Katayama (Thu,) studied this question.