Since it is a secondary result of our thinking and actions, we need to watch them and not be dragged along by the dysfunctional aspects of our ego-minds. Our ego-minds won’t let us be happy because they are based on fear and survival. It takes awareness and consciousness to put the restless mind in its subservient position to our Souls.
When we allow our Souls to emerge, we have even more than happiness. We have joy. Happiness is something that comes and goes. But joy is an underlying condition that lasts through all kinds of external events.