Poet lives amongst people, in the land of sadness and happiness, where they live, he dresses up like them, speaks like them, in their language he had to learn. But when he is on his own, he speaks in own tongue to not to forget it. He speaks with the dead, he keeps in touch with them, to make sure everything goes according to plan.
He is afraid to tell what he sees, in case people put him down and disbelieve. He forces himself to keep his mouth shut, he knows the price. He can't just die, he's on a mission. So carefully he smuggles in the truth in his poetry.