We read poetry, why not recovery seeds?
It's possible if you keep the seed in your mind, and we are sure it's safe there, at least you didn't write it on a piece of paper to let anyone have access to it. But still that's risky because there is he possibility for you to forget the words and maybe somehow in an accident, if you lose your memory, you will also lose your funds.
I think you should always have another plan for it.