From DBT: “What” Mindfulness Skills? This article includes information from DBT Skills Training Manual 2nd Edition pages 153-154 by Marsha Linehan, PhD. The “what” mindfulness skills are the three core mindfulness skills from DBT that help you with what to do when your mind is out of control. They help you to be skillful enough to be productive or to stop being destructive. Do You Mind? Tackling the Thing.