Are you sad? That’s because something is absent from your life. Are you anxious? Then there is uncertainty about whether you will get what you desire. Do you get angry often? It’s when what you value is in danger. Are you envious? It could be because someone else has what you desire.

This means if you want to be happy, then instead of desiring or avoiding what is out of your control, you should focus on what is within your control — your judgment, your character, your mind. So, most of your negative emotions will fade away.