Most of our suffering comes from habitual thinking. If we try to stop it out of aversion to thinking, we can’t; we just go on and on and on. So the important thing is not to get rid of thought, but to understand it. And we do this by concentrating on the space in the mind, rather than on the thought.

Our minds tend to get caught up with thoughts of attraction or aversion to objects, but the space around those thoughts is not attractive or repulsive. The space around an attractive thought and a repulsive thought is not different, is it? Concentrating on the space between thoughts, we become less caught up in our preferences concerning the thoughts. So if you find that an obsessive thought of guilt, self-pity, or passion keeps coming up, then work with it in this way — deliberately think it, really bring it up as a conscious state, and notice the space around it. This way, we begin to have a perspective on the impermanent nature of thinking.

Ajahn Sumedho