Islamic Interpretation
In a dream, vapor signifies a condition similar to cataract that clouds the eyes and weakens vision. If, during summer, one sees vapor coming from his mouth—a phenomenon normally seen in cold weather—it points to an internal illness or the disclosure of hidden secrets. If the dreamer is a devout believer, it may indicate negligence or loss of attentiveness. If he is a scholar, it suggests introducing a troubling or misleading innovation. Vapor in a dream may also symbolize falsehood, deception, and meaningless speech. (Also see Clouds)