Fantasy
To dream of a fantasy represents feelings of enjoying escaping from reality. A reflection of being in a highly imaginative state in waking life. Thinking that is unrealistic. Sexual fantasies. Imagining what is possible or achievable.
Negatively, dreaming of a fantasy may represent a tendency towards feeling disconnected from reality. Escapism. Playing with something that isn't real and never thinking it matters. Difficulty "coming back to reality" after living isolated. Awareness of yourself becoming realistic after not being. Unrealistic thoughts about sexual attraction to the opposite sex.
Example: A young man has recurring dreams of a timeless fantasy home that he would always walk around in different rooms in each dream. In waking life he felt disconnected from reality with no sense of being a person. In this case the symbolism of the fantasy home reflect his tendency to towards escapism in his daily life.
Example 2: A man dreamed of being accused of having fantasies. In waking life he was annoyed when someone told him that his belief that a woman was romantically interested in him might not be real.