For example, one can get an idea of the quality of food in a restaurant by reading the endorsements and the menu or looking at the pictures of the dishes. One can deduce a better impression by looking at the delight or disgust on the faces of the customers actually eating in the restaurant. This is similar to a physicist who has investigated the nature of the universe and has firmly come to the conclusion that there is nothing solid or substantial and that everything is in a state of flux, changing, impermanent, soulless, agencyless and illusory. This is still far from being enlightened, because it is not an experiential insight. An essential ingredient for achieving such a wisdom is the quality of the mind.
Wisdom comes when there is mindfulness and full concentration.
Full concentration means a penetrative and continuous unshakeable concentration from moment to moment. Thus, Buddhism has a very clear concept of mental health promotion and how to achieve this. Mindfulness is the most important tool for this purpose. The Western mental health professionals have also begun to use mindfulness as a tool for prevention, treatment and rehabilitation as regards mental disorders. However, it is not essential that any tool for promotion can be equally beneficial for treatment.