By the way, Impulse, this phrase happens to be the title of a really excellent Russian сказка (fairytale): The Tsar falls in love with the beautiful wife of a young soldier in the Tsar's army. In order to get rid of the soldier and steal his wife, the Tsar gives him an impossible command: "Пойди туда, не знаю куда, принеси то, не знаю что" -- and if the soldier fails, they'll chop off his head!
What the Tsar doesn't know is that the soldier's beautiful wife is, in fact, a powerful sorceress. (Even SHE doesn't know the answer to the riddle, but she does know the right people to ask -- which is often the most important thing...)
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