what is significant about the art queequeg creates to cover his coffin

The art mirrored the tattoos on his body. It told a story, one Qqeequeg wanted to share.

"Many spare hours he spent, in carving the lid with all manner of grotesque figures and drawings; and it seemed that hereby he was striving, in his rude way, to copy parts of the twisted tattooing on his body. And this tattooing had been the work of a departed prophet and seer of his island, who, by those hieroglyphic marks, had written out on his body a complete theory of the heavens and the earth, and a mystical treatise on the art of attaining truth; so that Queequeg in his own proper person was a riddle to unfold; a wondrous work in one volume; but whose mysteries not even himself could read, though his own live heart beat against them; and these mysteries were therefore destined in the end to moulder away with the living parchment whereon they were inscribed, and so be unsolved to the last."