The poem is a narrative made up of four six-line stanzas, known as sestets. Poe uses the term shadow in the middle of each stanza. The meaning of the word, however, changes with each use. First, it is a literal shadow, where the sun is blocked out. In the second, it implies gloom or despair. The third use is a ghost. The final use, "the Valley of Shadow", references the "Valley of the Shadow of Death", possibly suggesting that Eldorado (or riches in general) does not exist in the living world, or may be extremely difficult to find in the physical realm. Eldorado can also be interpreted not as the worldly, yellowish metal, but as treasures that actually have the possibility of existence in the abode of spirits. These "spiritual" treasures are that of the mind: knowledge, understanding, and wisdom. In this case, Poe doubted the worthiness of humanity to possess such "mental wealth" and admitted to the inescapable worldliness of mankind.
Edgar Allan Poe è nato a Boston (USA) nel 1809 da una famiglia di attori girovaghi. Non ebbe modo di conoscerli approfonditamente poiché la madre morì quando ancora era un infante e il padre, alcolizzato, abbandonò la famiglia subito dopo la morte della moglie. Il piccolo Edgar fu quindi allevato da un ricco mercante di Richmond di nome John Allan.
Anche Edgar Allan Poe era solito deliziarsi dell'uso di alcool e gioco d'azzardo, motivo per cui John Allan lo estromise dal testamento.