"Tantra means book, a leaf of paper or weaving loom. It is used for educational books or text books utilized for this special purpose. In its whole style Tantrism corresponds to the scholasticism of our Western culture. It plays a very great role in Tibetan Buddhism. They have a particular yoga, described as Kundalini Yoga or Serpent Fire Yoga. But this is Hindu, not Buddhist."

- ~Carl Jung, Psychology of Yoga and Meditation, Page 56