"Eurydice was a nymph in Greek mythology, one of the daughters of the god Apollo. She was married to Orpheus, a legendary musician and poet. After their marriage, Eurydice was pursued by Aristaeus; in her effort to evade him, she stepped on a snake, she was bitten and died."

These notes are incredibly helpful in following the multiple uses of "light"- when initially reading it I didn't catch them

Prelate: n. Ecclesiastical term referring to "a Church dignitary of high rank, such as a cardinal, bishop, or abbot"

from Old French prélat, from Church Latin praelātus, from Latin praeferre: to hold in special esteem, prefer

Cyrus the Great was the founder of Achaemenid Empire, which was the first Persian Empire. Xenophon's Cyropaedia is a fictional biography of his life.

Roman name for Cronus, the first king of the gods in Greek mythology (sired the gods Demeter, Hestia, Hera, Hades and Poseidon by Rhea, he devoured them all as soon as they were born to prevent them overthrowing him). He was overthrown by his son, Zeus (Jupiter in Roman mythology)

Involving the River Styx, which surrounds the Underworld (Hades) in Greek mythology