To dream about a memory, suggests that you are ready to rid yourself of your old ways and undergo some sort of transformation, gaining a new outlook in life. Remembering something in your dream indicates that you have learned something important from your past.
[1]1. Repressed or neglected memories need to be addressed.
2. A need or desire to detach or avoid situations or problems (to forget).
[2]Buried memories may come back if they are needed
[3]