The pure mind is itself Brahman; it therefore follows that Brahman is not other than the mind of the sage.

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.

The thing to do is to concentrate on the seer and not on the seen, not on the objects, but on the Light which reveals them.

If you go the way of your thoughts you will be carried away by them and you will find yourself in an endless maze.

For those who have obtained unobstructed knowledge of Self, the world is seen merely as a bondage causing imagination.

Apart from the body does the world exist? Has anyone seen the world without the body?

Misery does not exist in reality but only in mere imagination.