What this quote means

This paradoxical saying suggests that happiness lies in ignorance of one's own unhappiness. He who does not know he is unhappy is not really so, because unhappiness is often a mental construction. It evokes the idea that our perception of our state determines our well-being. If we do not compare ourselves to others or ruminate on our problems, we can be happy simply by living in the present moment. It is an invitation to let go of negative thoughts.

How to apply it daily

When you catch yourself feeling sorry, ask whether it is reality or an interpretation. Choose to focus on what is going well right now.