You must go to the root. The root is the ‘I-thought’. Question it by enquiring as to the source of this concept: “To whom does these questions appear?” “To me” “Who am I? Who is this me? Where does this idea come from?” Do not look for an answer. Only ask the question with patience whenever thoughts arise. This serves to quiet the restless mind. As you do this in a relaxed, alert way, you will notice that the space between the thoughts gets larger. Be aware of this space between your thoughts. That is your true nature, spotless, formless, pure Awareness. It shines like the sun; only clouds of thoughts seem to obscure it.