At times you may experience the sense of smell in your dreams. The smell could be environmental. If there is a strong smell in your sleeping environment, you may perceive it and incorporate it into your dream. Otherwise, the smell in your dreams is triggered by a memory. You may be associating your dream experience with a pleasant or unpleasant order. For example, if you are dreaming about your mother, you may smell the aroma of a food she once cooked. The smell may trigger emotions and reflect the general quality of the experience in your dream.