Do not Take Intoxicant
Buddhism emphasises wisdom. Taking intoxicant will descend and lose the seed of wisdom. Intoxicants, such as drugs, liquor, smoking, etc., are harmful to health. It seems that taking intoxicant is not hurting others. However, if we are drunk and lose our consciousness, we may easily commit evil deeds and hurt others. Therefore, one who breaks this precept will tend to break all other precepts along with it.
The fifth precept is based on respect for mental health. It guard against the loss of control of one’s mind. It is particularly important to those who meditate because, by refraining from taking intoxicants, they can more easily cultivate awareness, attention and clarity of mind. Thus the observance of the fifth precept not only contributes to happiness in the family and peace in society, it also prepares a person for the practice of Mental Development.