The Danish philosopher Søren Kierkegaard originally used the term "angst" to describe "A profound and deep-seated spiritual condition of insecurity and despair"; a lamentable and yet universally experienced state of consciousness which, he assured everyone, he knew about because he was so, like, deep, 'n' stuff. This was, at first, all well and good, and now that they had a serious-sounding word for their depression people could get back to building windmills.[#endnote_windmills]