The lowest level is adherence to a set of rules and regulations laid down by somebody else. It could be your favorite prophet. It could be the state, the head of your tribe, or a parent. No matter who generates the rules, all you have to do at this level is know the rules and follow them. A robot can do that. Even a trained chimpanzee could do it, if the rules were simple enough and he were smacked with a stick every time he broke one. This level requires no meditation at all. All you need are the rules and somebody to swing the stick. The next level of morality consists of obeying the same rules even in the absence of somebody who will smack you. You obey because you have internalized the rules. You smack yourself every time you break one. This level requires a bit of mind control. But if your thought pattern is chaotic, your behavior will be chaotic, too. Mental cultivation reduces mental chaos.