1 The three lines oí gurus are so called not because of any difference in their respective powers, but because of their different places of abode. In the Tanira—rāja (ch. I) it is said that the Gurus of the Divya Order always abide in Shiva’s Heaven, those of the Siddha Order both in the Human—World and in the Heaven—Worlds, and those of the Mānava Order on Earth only.