All people strive for happiness. But, as humans, we tend to attach our happiness to the things that we own, other people and conditions in our life. If things are going well, we are happy. If people like or love us, we are happy. When we have all of our material needs met, we are happy.
But, what happens when things don't go our way? True happiness is not to be found in possessions or conditions. We can only find true happiness only from within. When we discard all of the minds of attachment and illusion, we find our True Self - the Truth that is within us.
There, we find true happiness.