Dreams dictionary: Pattern
Dreams dictionary: Interpretation 1
To see a pattern in your dream suggests that your life has become monotonous and repetitious. You need to break free from the routine.
Dreams dictionary: Interpretation 2
To see or work with a dress pattern in your dream indicates that you are trying to emulate somebody. The dream may be a metaphor that you are trying to "pattern" yourself after someone you look up to. Or perhaps you are lacking your own identity.