For the same reason the book on Love was assigned to the First Ennead.
The Fourth Ennead, therefore, contains all that relates to Psychology.
The First Ennead contains the writings that treat of Morals.
These nine gods were together known as the great Ennead or cycle of nine.
By degrees the Ennead of Thot was thus reduced to two terms: take part in the adoration of the king.