Yet, after all, it was chiefly in the North, and in consequence of the council held by Kanishka, India’s greatest Buddhist king after Aṡoka[64] (see p. 69), that the original features of Buddhism underwent the greatest change and became overlaid with coating after coating of extraneous matter. It was there, in Northern regions, in the valley of the Indus, that the Protean system called Mahā-yāna arose, and grew, by the operation of the usual laws of accretion, conglomeration, disintegration, and reintegration, into a congeries of heterogeneous doctrines, including the worship of Bodhi-sattvas, deified saints, and personal gods. Naturally the adherents of this wider method spoke disparagingly of the simpler system prevalent in the South, whose sacred books were the Tri-piṭaka of Ceylon written in the ancient vernacular (Pāli). That system they designated Hīna-yāna, ‘the defective method,’ not denying however that their own enlarged system grew out of and included the simpler one. There arose, too, a third method, or ‘vehicle’ of salvation, called ‘the middle method’ (Madhyama-yāna). This, however, is not so well known, and, being a compromise between the other two, never gained many adherents, though it is still recognized in Tibet—the Tibetans often speaking of Tri-yāna, or ‘the three vehicles.’ At all events, it is only necessary for practical purposes to recognize the distinction of the Great and Little Vehicle—the Mahā-yāna[65] and the Hīna-yāna. And it may be stated generally that the inhabitants of Nepāl, Tibet, China, Manchuria, Mongolia, and Japan have always shown a preference for the Mahā-yāna, or ‘Great Vehicle,’ while the people of Ceylon, Burma, and Siam have always preferred the ‘Little Vehicle.’ At the same time, it is important to note that while the Buddhists of Northern countries are supposed to be disciples of the Mahā-yāna or Great Way of Salvation, the Buddhism of each Northern country differs greatly from that of the other, and that the countries nearest to India have still further complicated the Mahā-yāna system by adopting mystical doctrines, and introducing magic and other practices supposed to aid in the acquisition of supernatural powers. It must also be borne in mind that, although the Mahā-yāna or Great Method originated on the Indus, and the Hīna-yāna or Little Method, on the Ganges, the two streams of teaching were not always confined to these two areas, even on Indian soil. In point of fact they were often intermixed, and the changes thus brought about in Buddhism will become more evident by referring to the narratives of three well-known Buddhist travellers from China. Buddhism was introduced into China between 58 and 75 of our era[66], but it was not till much later that Chinese pilgrims visited India—the holy land of Buddhism.