Answer:
Meditation
Explanation:
Based on the information provided within the question it can be said that in this scenario Karen is referring to Meditation. This is a very famous practice/technique, in which an individual tries to focus their mind on a very specific object/thought/activity in order to train their mind and body to achieve complete awareness and a calm and stable state. Which is what Josh needs since the pain he is feeling is all psychological, and clearing his mind will most likely relieve this pain that he is feeling.