Text from letter to E.A. Poe's mother in law, Muddy:
"You will see at once, by the handwriting of this letter, that I am better--much better in health and spirits. Oh, if you only knew how your dear letter comforted me! It acted like magic. Most of my suffering arose from that terrible idea which I could not get rid of--the idea that you were dead. For more than ten days I was totally deranged, although I was not drinking one drop; and during this interval I imagined the most horrible calamities.... All was hallucination, arising from an attack which I had never before experienced--an attack of mania-a-potu. May Heaven grant that it prove a warning to me for the rest of my days. If so, I shall not regret even the horrible unspeakable torments I have endured". Edgar Allan Poe, Letter to Maria Clemm, July 19, 1849