To dream that you have fallen into the water from some boat or vessel is a sign of misfortune. Do not speculate, or you will lose your money. But to the sailor or anyone professionally connected with the water, this becomes a dream of contrary, and foretells prosperity.
[1]To fall overboard denotes poverty, imprisonment and sickness (Raphael). Obviously an anxiety dream.
[2]If falling overboard, see “falling”; throwing one overboard is unfair rejection: see “rejection”
[3]