By the middle of the seventh century only Kent and East Anglia remained in full and exclusive communion with Rome; for Sussex was still heathen, Wini, the West Saxon bishop, acted with British bishops, and Scottish Christianity prevailed in all the rest of England. The Scottish missionaries were full of zeal and self-devotion, and were masters of a considerable store of learning. Their nature was impulsive; while they were loving and tender-hearted, passionate invectives came as readily from their lips as words of love. Celtic Christianity was a religion of perpetual miracles, of deep and varying emotions, and of contempt for worldly things, that, however noble in itself, was sometimes manifested extravagantly. While its teachers seldom failed to win men's love, they were not equally successful in influencing their conduct. It was well that the English Church turned away from them, for their religious system could never have produced an organized ecclesiastical society. It was monastic rather than hierarchical, and a Celtic priest-abbot was a far more important person than a bishop who was not the ruler of an abbey, though in England the bishops were probably always abbots. In founding their sees they sought seclusion rather than good administrative centres, and the bishop's monastery was less a place of diocesan government than the headquarters of missionary effort. They had no regular diocesan system, and bishops and clergy ministered where they would. Their monasticism was of a specially ascetic character. Both Aidan and Cuthberht loved to leave the society of the monks at Lindisfarne, and to retire to the barren little Farne Island, where they could only hear the roaring of the northern ocean and the crying of the sea-birds. Cuthberht, indeed, even after he joined the Roman Church, kept the characteristics of the Scottish monk. He left the duties of his bishopric altogether and ended his days in his island-hermitage. This love of asceticism was fatal to the well-being of the Church; the individual soul was everything; the Church was nothing; and though great victories were won over heathenism, the Scottish Church remained without corporate life. Lastly, it was not in communion with Rome, and so lay outside Catholic Christendom. And though it had much to offer the English both in religion and learning, every gift would have been rendered fruitless by isolation from the progressive life of Western Christendom.