At birth, the child leaves a person - his mother's womb - and this makes him independent of her bodily functions. The baby is next endowed with an urge, or need, to face the out world and to absorb it. We might say that he is born with 'the psychology of world conquest. ' By absorbing what he finds about him, he forms his own personality.
If there is a central theme to what I called "a peaceful warrior's approach to living," and to The Four Purposes of Life, it is that there may be innumerable techniques or methods one can learn (from the Eastern spiritual cultures and from the Western psychological tradition), but that above and beyond all these technologies waits the school of everyday life.