Though it was generally believed that philosophy or science was pernicious to the interests of Christianity or true piety, the Mohammedan literature then prevailing in Spain was making converts among all classes of society.

We see very plainly its influence in many of the sects that then arose; thus, "the Brethren and Sisters of the Free.

Spirit" held that "the universe came by emanation from God, and would finally return to him by absorption; that rational souls are so many portions of the Supreme Deity; and that the universe, considered as one great whole, is God." These are ideas that can only be entertained in an advanced intellectual condition.

Of this sect it is said that many suffered burning with unclouded serenity, with triumphant feelings of cheerfulness and joy.

Their orthodox enemies accused them of gratifying their passions at midnight assemblages in darkened rooms, to which both sexes in a condition of nudity repaired.