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Xibalba is described in the Popol Vuh as a court below the surface of the Earth associated with death and with twelve gods or powerful rulers known as the Lords of Xibalba. The first among the Maya Death Gods ruling Xibalba were Hun-Came (One Death) and Vucub-Came (Seven Death), though Hun-Came is the more senior of the two.[4][5] The remaining ten Lords are often referred to as demons and are given commission and domain over various forms of human suffering: to cause sickness, starvation, fear, destitution, pain, and ultimately death.[1] These Lords all work in pairs and are Xiquiripat (Flying Scab) and Cuchumaquic (Gathered Blood), who sicken people's blood; Ahalpuh (Pus Demon) and Ahalgana (Jaundice Demon), who cause people's bodies to swell up; Chamiabac (Bone Staff) and Chamiaholom (Skull Staff), who turn dead bodies into skeletons; Ahalmez (Sweepings Demon) and Ahaltocob (Stabbing Demon), who hide in the unswept areas of people houses and stabbed them to death; and Xic (Wing) and Patan (Packstrap), who caused people to die coughing up blood while out walking on a road.[4][5] The remaining residents of Xibalba are thought to have fallen under the dominion of one of these Lords, going about the face of the Earth to carry out their listed duties.

Xibalba was a large place and a number of individual structures or locations within Xibalba are described or mentioned in the Popol Vuh. Chief among these was the council place of the Lords, the five or six houses that served as the first tests of Xibalba, and the Xibalban ballcourt.[6] Also mentioned are the homes of the Lords, gardens, and other structures indicating that Xibalba was at least a great city.

Xibalba seemed to be rife with tests, trials, and traps for anyone who came into the city. Even the road to Xibalba was filled with obstacles: first a river filled with scorpions, a river filled with blood, and then a river filled with pus.[7]