There is no other practice to be done, except to understand (that is, telling yourself with conviction) that it is this knowledge that you are which is itself the knowledge, and not the way you are using this knowledge at the individual level. So the knowledge itself is the one that exists and must remain pure in and as that knowledge; and you must remain apart from it. That knowledge that you are has mistakenly identified itself with the body and so you are thinking of yourself as the body. But you are the ‘knowledge’. Strengthen your conviction that you are the knowledge, this Beingness, and not the body. Questionner: How can one do so? Nisargadatta: By meditation, like dhyana. And dhyana means the knowledge must remain in meditation with the knowledge. Now, what is meditation? Meditation is the knowledge ‘I am’ remaining in that knowledge.
~ Nisargadatta Maharaj