There are many articles on mind and many books already written. Even ancient spiritual writings are available on mind in many countries.
According to Osho there is no thing like Pure Mind cause Mind is never pure, where is mind there is engagement , stress and etc.
So what he suggest to be pure and peaceful , NO MIND IS BETTER THAN PURE MIND. If you try to pure the mind you will see more problems to get peace. Just like some people who pretends them selves more Spiritual , and wears spiritual dresses but we not find any Spirituality in their behaviors.
So sometimes you feel