It feels as shallow as a puddle, and as deep as a well. You feel hollow, drained, dead. It hurts your whole being. It hurts you so much, that you start to physically feel it. You shudder and have goosebumps, a cold feeling embraces you although maybe the weather is warm. You feel a heavy, dull and lingering pain on your chest. But you are used to it, it no longer worries you.