Whatever you may have to do, watch your mind.
__________________________ - Nisargadatta, p. 215, I AM THAT
Q: How can I bring it about?
Nisargadatta: You can do nothing to bring it about, but you can avoid creating obstacles. Watch your mind, how it comes into being, how it operates. As you watch your mind, you discover your self as the watcher. When you stand motionless, only watching, you discover your self as the light behind the watcher. The source of light is dark, unknown is the source of knowledge. That source alone is. . . It is definitely beyond the mind, but all you can do is to know your mind well. Not that the mind will help you, but by knowing your mind you may avoid your mind disabling you. . . It is like watching a thief - not that you expect anything from a thief, but you do not want to be robbed. In the same way you give a lot of attention to the mind without expecting anything from it.
You must watch yourself continuously - particularly your mind - moment by moment, missing nothing. This witnessing is essential for the separation of the self from the not-self.
__________________________- Nisargadatta, p. 27, I AM THAT