Waka poems were a popular art form in the Heian period, enough that the famous poet Fujiwara no Sadaie and Emperor Go-Toba sought to put together a selected collection of chosen verses.
Waka that makes you go "that's good" 
aren't good enough!
¡Si solo dices que es bueno,
significa que no lo es!
Wakas que te fazem pensar que tá bom,
não estão bons o suficiente!