If you are dreaming about earthworms, the connotation is more positive because they make contributions to the general health of our environment. Old, superstition based dream interpretations say that dreaming about worms is a warning about poor health. Writing Writing is a means of communication. In dreams it may be a symbol of communicating with others, but it mostly represents communication with oneself. If you are writing in a dream or reading someone else's writing, it may be an unconscious effort to become aware of forces or issues in life.
Writing is a secondary form of communication.
Speaking is more direct and less cumbersome for most. Thus, the written message in your dream may be disguised or may be less genuine than other forms of receiving information from the unconscious. You may be trying to figure something out and this might be the first step in that process.