Dreams for the most part are fragments of memories all put together to make up one, well, dream! * At least from what I’ve gathered on the internet * So if a lot of your memories are of you smoking then it makes sense your brain would remember that and recall it in a dream. Another thing to note is that even in a dream you felt terrible about relapsing. And while 10 days is quite the achievement, it’s still early on in your journey and they might go away soon. And I’ve heard many addicts in recovery with 10, 20, 30+ years say they still have dreams of using. It doesn’t say anything about your character or intentions of staying sober, it’s simply a dream.