This term refers to an effect that allows lasting satisfaction and rewarding in
poetry appreciation, which is a particular sense of beauty offered by poetry. In
the Southern Dynasties, poetry critic Zhong Rong proposed in "The Critique of
Poetry" that in writing five-character-per-line poems, one should pay special
attention to the combination of form and content, so that readers could enjoy
a poem with inexhaustible delight. Later, nuanced flavor also came to refer to a
kind of taste in literary and artistic creation.