A knight, fearing that he may not return home, writes a letter to his children to pass on to them what he has learned in life. Through a series of thoughts on loneliness, humility, forgiveness, honesty, courage, honor, pride, and patience, he speaks about the ancient teachings of Western and Eastern philosophy, as well as the great spiritual and political texts of our time. His purpose: to give his children a compass for a journey they will have to make on their own, a brief guide to what gives meaning and beauty to life.