As they sailed slowly on, Gertrude said, "How like a dream is this sentiment of existence, when, without labour or motion, every change of scene is brought before us; and if I am with you, dearest, I do not feel it less resembling a dream, for I have dreamed of you lately more than ever; and dreams have become a part of my life itself." "Speaking of dreams," said Trevylyan, as they pursued that mysterious subject, "I once during my former residence in Germany fell in with a singular enthusiast, who had taught himself what he termed 'A System of Dreaming.' When he first spoke to me upon it I asked him to explain what he meant, which he did somewhat in the following words.".