Edgar Allan Poe eerily uses the repetend “nevermore” several times in the poem, “The Raven”. Pallas was a Titan god in Greek mythology. Nepenthe was a potion used by the ancients to induce forgetfulness of pain or sorrow … or oblivion … probably cannabis or opium! Once I heard an art student say that he smoked cannabis for inspiration. I said, "Flush it down the toilet." Nothing more.