An obscure reference is also made of Pryderi and his father in the cryptic early medieval poem Preiddeu Annwfn:

A text file accompanying the leaked track contained a cryptic poem and reference to a release date of 17 August.

The servant was shocked when Amergin uttered a precocious, cryptic poem, and ran home to tell his master what he had heard.

The Spoils of Annwfn is a cryptic early medieval poem of sixty lines found in the Book of Taliesin.

Nancee Meeker's ceramic bowls are cryptic poems.

The teams were named Niffs and Fiffico, and results were announced on public places through cryptic poems not understandable by German soldiers.

Allama's cryptic poems, though full of kindness, are known for their satire, mockery, invective and rejection of siddhis (occult powers).

Seongcheol had this explanation for the cryptic poem:

But there are also some clever brainteasers involving cryptic poems and mysterious symbols, although the game often offers unnecessary hints.

In other words, the poem seems to say, once you penetrate these oblique, almost cryptic poems, they will open up and reveal their meanings.