Last night, I dreamed of a big ship, which was rickety, and I dreamed that some old classmates were on board.

Dreaming of a big ship means a big chance. The ship's wobbling indicates that a big opportunity may pass by. Old classmates symbolize long-term friendship. This dream indicates that you may have a great opportunity recently, which may be brought by a very good old friend. The opportunity may pass you by, so you need to take it.