Dreaming of mermaid is a good omen as per dream meaning and interpretation. The dream means you will see change of luck and there will be divine help. It also means you will see health improvement and there will be lot of physical activity. Dreams of gargoyle also mean you will have clarity of thinking and there will better and proper direction in your life.
Dream of mermaid and you are present in the dream means you will soon face show courage in the face of adversity. You will help people. It also means doing positive that society is scared of doing.
Dreams of mermaid and you see other people means you be honored for your courage and intelligence. You might also need help of public to solve a problem.
Dreaming of mermaid and if they are changing color means someone will approach you in a nice way but they will have evil intentions.
Dream of mermaid and they are black or white means too much mythical reading or movies is hampering your thought process.
Please note that the dream to have a meaning it should happen without any intense activity regarding the same subject during day time. So thinking or watching about mermaid during day time and then having the dream have no meaning.