The Sanskrit word “tantra” literally means an instrument for stretching. Traditionally this refers to threads on a loom, but it has come to indicate a system which weaves together various techniques and practices to seek liberation and mystical powers…
One of my favorite Indian stories occurs in Bṛhadāraṇyaka Upaniṣad 3.9.1, where Vidagdha Śākalya, “the clever grammarian,” repeatedly asks Yājñavalkya how many gods there are. As he keeps asking his question, the answer goes from “three and three hundred and three and three thousand” to thirty-three to six to two to one-and-a-half to one.