To dream of marriage represents a sense of union or permanence. Aspects of yourself that are working together all the time. A situation that you are always involved with. Ideas you are convinced of. Behavior or habits you can't see yourself discontinuing. Dependency of a certain way of thinking or acting.
Marriage may be a sign that you are repeating certain behavior a lot or experiencing something that you feel is permanent.
Negatively, marriage may reflect situations that you feel stuck with. Feeling trapped or held back.
Example: A man dreamed of being married to Evangeline Lilly. The quality that stood out the most to him about Evangeline Lilly was her unwillingness to "take crap" from anyone. In waking life the man was spending a lot of time yelling at his business partner who was being irresponsible. Being married to Evangeline Lilly reflected how he felt he had to prove to his partner that he wouldn't take crap from him at all times.
Example 2: A young girl dreamed of being married to a vampire. In waking life she noticed herself being dependent on using her friend to get through a class at school.