A cloud in a dream often reflects something not yet clear -- thoughts, plans, or feelings still obscured, waiting for more information before they resolve into a clearer shape. Watching clouds part can mirror a transition toward understanding, while an unbroken overcast sky may name uncertainty that's lingered longer than you'd like.
Saturn is under the Sun beams until he be 15 degrees distant from him. Understand the same of Jupiter. - William Lilly (1602.-1681.)