If you dreamed about swimming in a polluted lake: You may change places, spend time with new people or start striving for what you believe in. There may be people around you who are trying to manipulate you or conversations. Swimming in a dirty lake in a dream indicates that the person who sees the dream will experience negative developments in his life, encounter unexpected problems, lose his pleasure and joy, and have difficult and bad days. It indicates that the dreamer will experience bad luck, he will not get anything he wants and he will be very sad, his expectations will be negative, his pleasure and joy will be lost, he will be in difficult situations.