Whatever we have been handed at birth, and the vagaries of childhood and later, we have a choice to pursue a quest to re-create the Self to something better.  References are to the universal battle, reflected to some extent in our daily decisions, as per Gen 3:15 where the representative of Good is 'bruised in the heel,' and the personification of Evil awaits his final end, being 'bruised in the head.'  Only then will 'heaven and earth' unitedly attain its full relief of peace and happiness, along with true and enduring fulfillment.