It would be common to hear stories of the gods fighting demons (the machines). It would not be easy to establish and maintain order. Several gods reestablished order repeatedly after Indra defeated the serpent-dragon Vritra. He fought demons when he was young, but only as an incarnation, or avatar, such as a fish, a boar, Krishna, or Rama, not as the Supreme. There was a contest for supremacy with a sage-like Nârada - if not with another god or demon. The ascetic practice of tapas (giving up the pleasure of gaining power) was the currency of the gods.