Man degrades himself by consuming intoxicating drinks and non-vegetarian food and by indulging in smoking. These noxious habits affect the brain also.
If a smoker blows air on a white handkerchief, he will find yellow spots on it. This is a sign of disease. Smoking leads to cancer. Drinking is a demonic quality. It makes you intoxicated and to forget yourself. Consuming non-vegetarian food is also a bad quality.
The tongue should be engaged only in speaking the truth, in speaking sweetly and in consuming what is pleasant and wholesome for the body.