Aetna could represent many things. One, a modern version of Hephaestus’ automatons, metal people (& animals) he crafted were as real as living beings. Two, Mount Etna is often associated with Hephaestus. It is said to imprison the monstrous Typhoeus, who also arbitrated a land squabble between Hephaestus and Demeter. Three, the eyes on screens could be a nod to the many cyclops who worked for Hephaestus in the myths. Eyes also symbolize perception and vigilance, access to forbidden knowledge, and surveillance.

A glass elevator appears in Charlie and the Chocolate Factory. In the book/movie, it allows him to see the world and his future, though he must ride through the frightening parts. When he accepts the uncertainty, the elevator takes him to the right place.

Hades leads Persephone out of the limousine, and the image of him extending out his hand is a parallel to Persephone’s dream of wanting to go out on a date. Later in the episode, Hades officially asks her out on a date after her trial.

Underworld beings are seen fawning over a Lore Olympus version of the Birkin. Due to the exclusivity and rareness of certain Birkin bags, the bag is a symbol of wealth in the fashion world.