A striking feature of the world in which Jainism and Buddhism arose was the prevalence of confraternities or religious orders. They were the recognized form of expression not only for piety but for the germs of theology, metaphysics and science. The ordinary man of the world kept on good terms with such gods as came his way, but those who craved for some higher interest often separated themselves from the body of citizens and followed some special rule of life. In one sense the Brahmans were the greatest of such communities, but they were a hereditary corporation and though they were not averse to new ideas, their special stock in trade was an acquaintance with traditional formulæ and rites. They were also, in the main, sedentary and householders. Somewhat opposed to them were other companies, described collectively as Paribbâjakas or Samanas[225]. These, though offering many differences among themselves, were clearly distinguished from the Brahmans, and it is probable that they usually belonged to the warrior caste. But they did not maintain that religious knowledge was the exclusive privilege of any caste: they were not householders but wanderers and celibates. Often they were ascetics and addicted to extreme forms of self-mortification. They did not study the Vedas or perform sacrifices, and their speculations were often revolutionary, and as a rule not theistic. It is not easy to find any English word which describes these people or the Buddhist Bhikkhus. Monk is perhaps the best, though inadequate. Pilgrim and friar give the idea of wandering, but otherwise suggest wrong associations. But in calling them monks, we must remember that though celibates, and to some extent recluses (for they mixed with the world only in a limited degree), they were not confined in cloisters. The more stationary lived in woods, either in huts or the open air, but many spent the greater part of the year in wandering.