The mechanism of the underworld scene. Shades have no breath, no body, no voice that carries. They need warm blood to remember being people, to look at the living and see them, to speak. Circe gives Odysseus the recipe before he sails. Dig the pit. Pour the libations. Cut the throats of a black ram and a white ewe. Then stand over the trench with your sword drawn and let no shade drink until Tiresias drinks first. The image is brutal and exact. His own mother shuffling toward the pit with hungry blackened eyes, not seeing him, not knowing him, and Eurylochus has to hold her back while she fights weakly to get to the blood. She cannot be his mother again until she drinks. The dead are dead because they have no warmth. The living give warmth back, briefly, in exchange for what only the dead know.
The Blood Offering to the Dead
The dead cannot speak until they drink. Pour blood into the pit, hold them back with a sword, let only the prophet drink first.