What does it mean that poetry teaches poetry to know with poetry?

Learning poetry should use the artistic conception of poetry and songs. Poetry knowledge refers to the artistic conception of poetry and songs, and poetry teaching refers to the method of educating people with poetry since ancient times. The related work is The Book of Songs. Teaching poetry with poetry has been a method of educating people with poetry since ancient times. Refers to the method of educating people with poetry since ancient times. First of all, we must understand the artistic conception of poetry and songs.