I treat of Tantrism and Śâktism in another chapter. The original meaning of Tantra as applied to literary compositions is a simplified manual.[297] Thus we hear of Vishnuite Tantras and in this sense there is a real similarity between Buddhist and tantric teaching, for both set aside Brahmanic tradition as needlessly complicated and both profess to preach a simple and practical road to salvation. But in Hinduism and Buddhism alike such words as Tantra and tantric acquire a special sense and imply the worship of the divine energy in a female form called by many names such as Kâlî in the former, Târâ in the latter. This worship which in my opinion should be called Śâktism rather than Tantrism combines many elements: ancient, savage superstitions as well as ingenious but fanciful speculation, but its essence is always magic. It attempts to attain by magical or sacramental formulæ and acts not only prosperity and power but salvation, nirvana and union with the supreme spirit. Some of its sects practise secret immoral rites. It is sad to confess that degenerate Buddhism did not remain uncorrupted by such abuses. It is always a difficult and speculative task to trace the early stages of new movements in Indian religion, but it is clear that by the eighth century and perhaps earlier the Buddhism of Bihar and Bengal had fallen a prey to this influence. Apparently the public ritual in the Vihâras remained unchanged and the usual language about _nirvâna_ and _śûnyatâ_ was not discarded, but it was taught that those who followed a certain curriculum could obtain salvation by magical methods. To enter this curriculum it was necessary to have a qualified teacher and to receive from him initiation or baptism (abhisheka). Of the subsequent rites the most important is to evoke one of the many Buddhas or Bodhisattvas recognized by the Mahayana and identify oneself with him.[298] He who wishes to do this is often called a sâdhaka or magician but his achievements, like many Indian miracles, are due to self-hypnotization. He is directed to repair to a lonely place and offer worship there with flowers and prayers. To this office succeed prolonged exercises in meditation which do not depart much from the ancient canon since they include the four Brahmâ-vihâras. Their object is to suppress thought and leave the mind empty. Then the sâdhaka fills this void with the image of some Bodhisattva, for instance Avalokita. This he does by uttering mystic syllables called bîja or seed, because they are supposed to germinate and grow into the figures which he wishes to produce. In this way he imagines that he sees the emblems of the Bodhisattva spring up round him one by one and finally he himself assumes the shape of Avalokita and becomes one with him. Something similar still exists in Tibet where every Lama chooses a tutelary deity or Yi-dam whom he summons in visible form after meditation and fasting.[299] Though this procedure