When it comes to smoking, it’s how you feel when you’re not doing it that’s the problem. When you’re not doing it, you feel empty, insecure, agitated, and anxious. All these feelings are caused by smoking, not relieved by them. It’s like wearing a pair of shoes that are too small, so that you can experience the relief of taking them off. When you light up a cigarette, you’re feeling how a non-smoker feels – back to normal. This is the crux of the illusion of pleasure that we think a cigarette gives us.