There must be a subject to know the good and evil. Thatsubject is the ego.

Let knowledge be guessed by the sign of equality to all beings.

There is no mind to control if you realise the self. The mind having vanished, the self shines forth. In the realised man, the mind may be active or inactive, the self remains for him.

Once the current of awareness of the self is set afoot, it becomes everlasting and continuous by intensification.

Concentration is not thinking of one thing. On the contrary, it is excluding all thoughts, since all thoughts obstruct the sense of one's true being. All efforts are to be directed simply to removing the veil of ignorance. Concentrating the mind solely on the Self will lead to happiness or bliss. Drawing in the thoughts, restraining them and preventing them from straying outwards is called detachment (vairagya). Fixing them in the Self is spiritual practice (sadhana). Concentrating on the heart is the same as concentrating on the Self. Heart is another name for Self.

By whatever path you go, you will have to lose yourself in the one. Surrender is complete only when you reach the stage `Thou art all' and `Thy will be done'.

Mind is consciousness which has put on limitations. You are originally unlimited and perfect. Later you take on limitations and become the mind.