Classic Maya inscriptions are overwhelmingly about rulers, because rulers commissioned them. They record a conception of kingship in which the ruler's own body was the instrument through which the community reached the gods and the dead.
Bloodletting is depicted repeatedly: a king piercing his body, a queen drawing a thorned cord through her tongue, the blood collected on paper and burned so that the smoke rises. Carved panels from Yaxchilan show such a rite with an apparition emerging from the smoke, which the text names. Whether that represents an experience, a claim, or a convention of the art is not something the monuments settle.
Rulers also danced, played the ballgame, impersonated gods in costume, and dedicated buildings at calendrically significant moments. Accession, warfare and the display of captives were recorded in the same register as ritual, and no line separates the political from the religious in these texts.
The landscape itself was structured. Caves and cenotes, the sinkholes that supply water in the northern lowlands, were entrances to the interior of the earth and received offerings, including human remains. Mountains, and the pyramids echoing them, were places of ancestral presence.
The K'iche' narrative known as the Popol Vuh was written in the colonial period but draws on older material. It describes an underworld called Xibalba, the defeat of its lords by a pair of twins, and the making of people from maize after earlier attempts failed. Scenes painted on Classic pottery centuries earlier match parts of it closely enough to indicate a long tradition behind the text, though not that the text preserves it unchanged.
The gods are less tidy than handbooks suggest. Itzamna, K'awiil, the Maize God and the rain god Chaak are securely identified; others are known only by letters assigned by scholars, their names still uncertain. Hunab Ku, frequently listed as the Maya supreme god, appears only in colonial-period sources and is widely thought to reflect missionary influence rather than pre-conquest belief.