ideal land; perfect country; utopia
A classical Chinese allusion to a dream of an ideal realm. Used in literary or philosophical contexts to refer to a perfect, imaginary land.
The land of Kasho is an ideal realm that appears in classical Chinese texts.
afternoon nap
Derived from the same classical story, where the Yellow Emperor dreamed of the ideal land during a nap. Rarely used in modern Japanese; mostly encountered in literary or historical contexts.
The word 'Kasho' can also be used to mean an afternoon nap.
From a classical Chinese legend in which the Yellow Emperor dreamed of an ideal country called 華胥氏 (Kashoshi) during an afternoon nap. The word later came to refer both to the utopian land and to the nap itself.