And not only was the Irish Church isolated as a Church, its several members were isolated one from another. It was a series of camps of Christianity in a pagan land, of centres of Christian morals in a land of the wildest social disorder. The camps were centred each in itself, like a city closely invested. The monastic life, in the extremest rigour of isolation, was the only life possible for the Christian, under the social and religious conditions of the time. And each monastic establishment must be complete in itself, with its one chief ruler, its churches, its priests, and the means of keeping up its supply of priests. There was no diocesan bishop, to whom men could be sent to be ordained, or who could be asked to come and ordain. They kept a bishop on the spot in each considerable establishment; to ordain as their circumstances might require; under the rule of the abbat, as all the members were. Very likely in great establishments they had several bishops. The groups of bishops in sevens, named in the Annals, the groups of churches in sevens, as by the sweeping Shannon at Clonmacnois or in the lovely vale of Glendalough, these, we may surmise, matched one another. We read of hundreds of bishops in existence at one time in Ireland, and people put it down to "Irish exaggeration." But given this principle, that an Irish monastery, in a land not as yet divided into dioceses, not possessing district bishops, must have its own bishop, the not unnatural or unfounded explanation of "Irish exaggeration" is not wanted. In some cases, no doubt, a bishop did settle himself at the headquarters of a district, and had a body of priests under his charge, living the monastic life with him under his rule, and exercising ministrations in the district. But in the large number of cases the bishops were only necessary adjuncts to monasteries over which they did not themselves rule. A presbyter or a layman ruled the ordinary monastery, including the bishop or bishops whom the monastery possessed.