People who are content from inside can give good solution. Less the need, it's more the Happiness.
Happiness can never be lost, it's your nature. When you go to the core of your existence, it is happiness. It appears to be lost when the mind is caught in the maaya (illusion).
Maya means illusion. Maya means that which is temporary, that which is not the truth. Maya simply means appearance. Like the sunset is maya, because it only appears to be setting. In reality it is not setting. So sunset is maya.