“Kaikatsu Tenku” (The Sky is the Limit of the Sea)
The sea and the sky are expanding without limit.
It is used as a metaphor for a person who has a spacious mind, a big heart, and no ruts.
Also called “open sky, open sky, open sea.
The sea and the sky go on far, far beyond.
How small my scope is!
At the very least, we should have a broad mind.