" The practice of meditation is to see the transparency of this shield. But we cannot immediately start dealing with the basic ignorance itself; that would be like trying to push a wall down all at once. If we want to take this wall down, we must take it down brick by brick; we start with immediately available material, a stepping-stone. So the practice of meditation starts with the emotions and thoughts, particularly with the thought process. "

― Chögyam Trungpa , The Myth of Freedom and the Way of Meditation