What is so wonderful about working with energy is, that you can 'feel' it. Feelings are energy, and by 'feeling' the energy of the block that you are working on, you can train yourself to feel the underlying reasons and causes. The basis of all development work is fear, which may manifest as anger, pain, anguish, hatred as well as in many other ways. By letting yourself feel the energy of your fear, you can reach the deeper understanding of yourself, which is a necessary route to clearing. Clearing means that you no longer have that particular energy block and void, and reflected reality.
Fear is separative.
It separates us from ourselves, our spiritual connection. It separates us on a cellular level, manifesting in disease. It separates us from each other for a variety of different projected reasons. What we fear is an illusion, and fear makes that illusion a reality. The clearing of our fear based blocks, is a major part of the change of level of development that is taking place, or as some call it, a major shift of awareness.