Meaning of life From a biological perspective I think it's very easy to qualify the meaning of life: species survival. For the brain of us complex beings however, this isn't enough and we need stimulation, stimulation which causes happiness. I believe that happiness is our driving force and, I know it sounds corny but what is a life without happiness. But what makes us happy? This is the part which differs between individuals. Fulfilment, satisfaction, relaxation? Never once have I read anything which can quantify everything which may make a person happy, but simply, whatever makes a person happy should be the meaning of their life (as long as they aren't harming others).