When you dream wagon means: These fantasies can change depending on whether the wagon is modern or was made for children. A covered wagon is an antique way to get from one location to the next. To fall off the wagon is to return to an old bad behavior. You might notice the wagon of a child. This could indicate that you need to find your inner child. Red could be a sign of passion, anger or both. A vacant wagon can signify emptiness or unhappiness.
(in Dream Dictionary)