A harmonious life is one of balance.You do not want to overeat, or undereat. You want to eat in balance with your bodily needs.
You do not want to overreact, or underreact, you want to react appropriately. This is balance.
People, though, may be in an imbalanced state.
In order to correct the balance, you may need to apply imbalanced pressure. For example, if you get angry very easily, the appropriate treatment for you would be to practice consistently the opposite (hardly ever getting angry) – that way you will move towards the center.
Consider a see-saw. If it is imbalanced, equal pressure on both sides will not balance it. You temporarily need to apply more pressure on one side, until the state of balance is restored.
Source: Imam al-Ghazali Rahmatullah Alaih
