In this dialogue, the Poet shows and the teacher tells.  Poetry is becoming song and so is literature.  I imagine these two spirits having this conversation about it.

Poet:  “…the cat’s in the cradle and the silver spoon…”

Teacher:  This song, Cat’s Cradle by Harry Chapin is a Poem or Story about a man and his son.

P:  “Oh, where have you been, my blue eyed son?’

T:  This song, A Hard Rain’s A-Gonna Fall by Bob Dylan was part of the reason, he won the Noble Peace Prize For Literature.

P:  On Love, on Grief

On love, on grief, on every human thing.

Time sprinkles Lethe’s water with his wing.

T:  This poem is only two sentences but is so memorable that you can memorize it without much effort.  Walter Savage Landor wrote it.

Three times at the start I put my teeth on my lower lips to create the consonants in the words “love,” “grief,” “every.”  Again with the three times at the finish, I purse my lips to create the consonants in the words “water,” “with” and “wing.”

P:  You all listen to music.

T:  A possible explanation for story and poetry becoming embedded in song.  But, what is poetry, if not song?