Some of the science books on consciousness erroneously state that it is our brains which construct reality. This is an error. Truth is simple. Reality is self not wanting to be by itself and the purpose of self is companionship otherwise known as love which is why the function of the brain; the function of the brain is to veil oneself as manifoldness so to escape aloneness. In conclusion. The purpose of self - the meaning of life - is love.