You should know both the universal and the personal, the realm of forms and the freedom to not cling to them. The forms of the world have their place, but in another way, there is nothing there. To be free, we need to respect both of these truths.
Ajahn ChahWhen sitting in meditation, say, "That's not my business!" with every thought that comes by.
Ajahn ChahWhen we see beyond self, we no longer cling to happiness. And when we stop clinging, we can begin to be happy.
Ajahn Chah