If you have dreamed of getting engaged to someone you don't know in your dream: You may need to put more effort in the things you are responsible for, You should not worry about things that you cannot change or people who have opposing views. To be engaged to someone you do not know in a dream, on the contrary to this situation, means that you will get engaged in the future and start a life with someone who exists around you but you have not noticed yet. Even if you are surprised in your future life, we can say that you will have a happy life with this person and you will live in peace.