To take a bath in the dream means you will come away scot-free from some not-so-clean affairs you might have taken part in recently. To see someone else taking a bath mean this person needs your attention urgently, and wants to have a conversation with you.
For a woman, seeing a bath in a dream promises new acquaintance and further romantic adventure.
To set or wash bath signifies you will deal with some work, which will bring you some income.
