To dream of clouds represents situations in your life which overshadow everything else. Noticeable or powerful distractions, delays, or disappointments.
To dream of walking on a cloud represents a sense of control over situations which overshadowed your life or distracted you. Feeling on top of things or having risen above something that kept you down. Examples situations which may encourage a dream of walking on clouds may be getting a new job after a long search, settling in after moving, or overcoming your competition that was originally stronger than you.