Islamic Interpretation of Dreams (Ibn-i Sirin):

(Inhaling pulverized tobacco or powdered medicine.) Inhaling snuff in a dream is a sign of devastation, lacking a sense of continuity, needing to conceive a child, needing one’s mother, seeking the help of one’s superior, or it could denote a mental illness.

If one sees himself snuffing tobacco or other herbs, or powdered medicine in a dream, it means that his anger has reached a stage he could no longer bear.