What does this wierd dream mean :S?

Ok so I dreamed that I was in like a maze of shrubs like 1 foot tall, and there where houses in the maze but only the bottem floor with no walls, it was foggy and a little dark like it had just rained, and then these small ufos appeared the size of a bread box and to get rid of them you had to hit them, they where only 6 feet in the air, I wasn't scared of the ufos though, my family and friends where helping me,the ufos where easy to get rid of it was a weird dream, I've had weirder but I usually don't remember the details what does this mean?