The oak essence is for those who are brave and do not give in to adversity. Even when ill, they fight on as long as they can, trying one treatment after another in their quest for health. They become discontented and unhappy if their illness or incapacity interferes with their natural desire to get on with their life, to do the things they want to do, or to be of help to others. The essence is needed when such people are so prevented, to help relieve the dissatisfaction it causes. It may be that their capacity is caused by overwork- a common occurrence with oak people because their natural reaction would be to ignore their body’s call for rest. In such cases, the essence would help to restore their strength.