With the mind, you can apply inwardly the same attention. When your eyes are closed, you can listen to the inner voices that “speak” in the mind. They say “I am this…”I should not be like that”. You can use those voices for bringing you to the space between thoughts. Rather than making a big problem about the obsession and fears that go on in your mind, you can open your attention and see those obsessions and fears as mental conditions that come and go in space. This way, even an negative thought can take you to emptiness.
Ajahn Sumedho, The Mind and the Way