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 denotes 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.