Integrae Naturae, by Robert Fludd. During the 16th and 17th centuries, notions of macrocosm and microcosm were widely accepted. Many people believed that the same patterns found in the human body on a small scale (microcosm) are found in the natural universe as a whole (macrocosm). Here, a nude female figure representing the world's soul is chained on the right hand to God and on the left to a monkey representing man; astrological and alchemical symbols fill the inner circles, while the hierarchy of angels form outer circles. Robert Fludd, also known as Robertus de Fluctibus (1574-1637) was an English physician, astrologer, and mystic. His philosophy is presented in Utriusque Cosmi, Maioris scilicet et Minoris, metaphysica, physica, atque technica Historia (The metaphysical, physical, and technical history of the two worlds, namely the greater and the lesser), published in Germany between 1617 and 1621.