And in the second year of the reign of Nebuchadnezzar Nebuchadnezzar dreamed dreams, wherewith his spirit was troubled, and his sleep brake from him. The second year of the reign of Nebuchadnezzar - That is, the second year of his reigning alone, for he was king two years before his father's death. See the notes on Daniel 1:1 (note). This was therefore the fifth year of his reign, and the fourth of the captivity of Daniel.
Nebuchadnezzar dreamed dreams wherewith his spirit was troubled - The dream had made a deep and solemn impression upon his mind; and, having forgotten all but general circumstances, his mind was distressed.