Dreams at dawn typically indicate new found awareness and or awakening of some sort. When they occur at dusk, it usually indicates an ending of some sort. Sometimes this simply indicates a lesson has been learned. Movement on your own requires physical balance of the body. Learning to operate a motorcycle involves learning to use more of your power. Similar to a bicycle, but with more power and the people switching back in forth and being in good spirits leans towards learning to balance the physical and non-physical aspects of self.