In my humble opinion

True happiness doesn't have a cause. When this is fully accepted and understood there will be advancement. It is a freeing concept. Nothing can MAKE you happy therefore NOTHING can make you unhappy. There is a beauty in that and a freedom and more than a small amount of peace. Letting go of the struggle to BE anything at all is the highest level of freedom and inner peace that we will ever attain. Realizing that we already ARE all that we are meant to be. . Peace.