Dream Takes Flight

It was a strange dream:
Flying, my hands in a box,
Hitting birds for fuel.

The details are fading in the hours since the morning, but basically, following some beginning involving a huge sand pit, we -- myself and a group of unknowns who were known in the context of the dream -- each had to put our fists in some sort of flying contraption which looked strikingly like a small box and which pulled us rapidly through the air. Yes, they were flying vehicles of some sort. The biggest curiosity was that hitting birds with them somehow provided the propulsion power for them. Ducks and geese mostly. I don't believe the birds were hurt (miraculously) but they did make a gentle "thud".