To dream of writing may reflect feelings about what you or someone else is honestly thinking being noticed in waking life through actions. Noticing total honesty about someone's true thoughts by their actions. A final expression of what one is thinking through their actions. Realizing the truth.
Negatively, dreaming of seeing writing may reflect unpleasant feelings about seeing people you know express their true selfish thinking through their actions. Realizing that people aren't really your friends or have no respect for you. Jealousy that people are not who you originally thought they were. Sensitivity about people not doing what they said they were going to do. Feeling that broken promises or the end of a relationship is imminent.
To dream of writing on a bedroom wall may represent private feelings about true intentions that have been revealed by actions taken by yourself or others. Secretly feeling embarrassed or afraid to confront someone else's dishonest actions. Secret feelings about people proving they are not really your friend because their actions do not match their words.
Example: A young man dreamed of seeing writing on notes stuck to a wall. In waking life he was slowly beginning to realize that a new friend he had didn't really respect him at all when the friend began to say and do things that were completely obvious in revealing his bad intentions.