Birch is eye-opening. It shatters our illusions and brings us up against reality. This sounds harsh, but honesty in looking at oneself is a liberating force. The most important truth we can learn in this life is the truth of our own motivations. This truth will truly set us free, and birch essential oil can help us grasp it and keep hold of it. Birch has an aspirin-like compound which has much the same effect on muscles and nerves as cortisone, without the side-effects of cortisone.