What really do dreams tell us about ourselves

Last week, I narrated a dream that I had while awaiting a replacement of a van that had broken down on my way to Maasai mara. When I woke up after the dream, I could remember in details every trail of the dream. It was so vivid that I had to go round the van to make sure it was not the one in my dream. Though I would have been happy to drive the van in my dream, it was kind of scary to be inside a van that can, at its own volition, take off from the ground and fly away at the touch of the gas pedal. I would rather drive a normal van, even if it will behave like the rest and overheat...