Cathodes, Cathedra in Tartarian architecture.

Cathedra, where the Bishops sit, was used for teleportation before the Invaders / Parasites / Usurpers took it over and divided us religion-wise with malevolent intent.

Cathodes, "the negatively charged electrode by which electrons enter an electrical device; the positively charged electrode of an electrical device, such as a primary cell, that supplies current."

Our lost free energy.