There is no simple, unanimous (good for everybody) and unique (in time and space) meaning for all human life. If there was a sole meaning, i.e., if there was a master plan, then everybody should be able to at least have a shoot at the trophy. For the sake of argument, let's assume the meaning of life was to love and to be loved. In order to make sense of it all (in other words, to have a meaning) everyone should have the possibility to be in love. And not everybody has (I mean objectively, medically). Nor does every human has the possibility to achieve any other “meaningful” achievement I can think of as a potential meaning for life.
So it can't be objective and universal. If it exists, it must be complex, mutable, and maybe even subjective...
Happiness is a good answer. Because is a formal concept. No core. Happiness is subjective and mutable. A different toy when we are five. A love at eighteen. Security and a family at thirty. Grandchildren. Health...
But it solves not the problem... for if everyone must find his or her meaning, the problem subsists: do all individual meanings join up to a greater sense?... In the end, if there are only egoistic purposes for one's life, there is not, in truth, a real meaning...
