One must see that the looks are not tainted by evil intentions or thoughts. One should not listen to evil talk. Hence everyone should see that they give no room for bad looks, bad hearing, bad speech, bad thoughts and actions. You should also be careful with regard to your food. Excessive eating does violence to the body.
Moderation is conducive to happiness.
Ahimsa is thus what confers happiness on you. When you realize that God is in everyone, you will practice non-violence. Non violence is an alternate name for Truth and Love. By following Non-violence, one achieves Love. To follow the path of non-violence, it is necessary to change the mental attitude.