self-referential

That is a very pleasant line, the one that we have italicized; […] Why did he [Ben Jonson] not write more such? He might answer that he did, and that his poetry was full of enjoyment. But it is not; at least not in the entirely happy, familiar, unmisgiving, self-referential, and yet not self-loving sense that we speak of.

It [Dante Alighieri's Divine Comedy] also has a design strictly self-referential. The author feigns, that the beatified spirit of his mistress has obtained leave to warn and purify his soul by shewing him the state of things in the next world.