If, according to the plot of your dream, there are two ships, the ships diverge, passing in such close proximity that one might encounter, in real life you can pass by your half without ever knowing about it. If you are traveling in a dream while on board a super-liner, then be prepared: the gambling that you are interested in, and in which you want to take part, is a great undue risk. Was it a dream that you witnessed an incident on board an aircraft? Perhaps in real life you will become a hostage to a situation in which you will not be able to fully manifest yourself. Even being very active, you can not change the course of current affairs.