Daniel 2:3 - Albert Barnes' Notes on the Bible

And the king said unto them, I have dreamed a dream, and my spirit was troubled to know the dream - That is, clearly, to know all about it; to recollect distinctly what it was, and to understand what it meant. He was agitated by so remarkable a dream; he probably had, as Jerome remarks, a shadowy and floating impression of what the dream was - such as we often have of a dream that has agitated out minds, but of which we cannot recal the distinct and full image; and he desired to recal that distinctly, and to know exactly what it meant. See Daniel 2:1.