Morality as taught by way of rules is extremely powerful and valuable in the development of practice. It must be remembered that it, like all the techniques in meditation, is merely a tool to enable one to eventually get to that place of unselfishness where morality and wisdom flow naturally. In the West, there's a myth that freedom means free expression--that to follow all desires wherever they take one is true freedom. In fact, as one serves the mind, one sees that following desires, attractions, repulsions is not at all freedom, but is a kind of bondage. A mind filled with desires and grasping inevitably entails great suffering. Freedom is not to be gained through the ability to perform certain external actions. True freedom is an inward state of being. Once it is attained, no situation in the world can bind one or limit one's freedom. It is in this context that we must understand moral precepts and moral rules.
TAMAS is andhakar (darkness), giving and getting pain is Tamas. Its most binding, keep away from it to get Mukti RAJAS is sensual pleasure with no caring. Pleasure followed by pain is Rajas, it also binds. SATAV is giving and getting pleasure. It highest of three- Satav, Rajas and Tamas. It purifies the heart and has least bondage. GUNATIT is getting away from all three - Satav, Rajas & Tamas. When there is no like or dislike, nothing bothers, all is acceptable as wish of God, then we become gunatit and get deliverance.