Should a politician act upon practical necessity or be guided by theory? Cicero (1st century BCE) has several philosophers debate this question in ?On Public Affairs? (?De re publica?), ending with the ?Dream of Scipio?, a vision of heavenly glories awaiting selfless politicians. Macrobius (5th century CE) commented on the 'Dream? through the lens of contemporary philosophy which argued a superior transcendent reality. The commentary?s mysticism and its views of geography (proposing a round earth) appealed to medieval theologians. This manuscript?s handwriting style and inclusion of verses by Rhygyfarch (Ricemarch), poet of St David?s, link it with Wales. Macrobius referenced the ancient Greek philosopher, Plato, as well as late Roman philosophers who saw the universe as built upon geometrical principles and perfect patterns (circles, squares). Diagrams of this sort of world often resemble the one on this page. It shows the harmonies and dissonances of the four elements (air, water, fire, earth) and four states (hot, dry, cold, humid).