Have you seen the octopus that becomes a bush?
Actually, it becomes anything it wants to by changing its coloring to completely match its surroundings.
It does this so well that it is impossible to see it, even to the sharp- eyed predator looking for it. It does this shape-shifting in 7/10ths of a second.
Perhaps like me you have often thought how wonderful it would be to be a shape-shifter. Or perhaps you have dreamed about being in two or more places at once, or imagined traveling like a beam of light with no need of alternative transportation.