The Siddhanta (the Doctrine -- or Agama, the tradition) is the primary scripture of Jainism. The religion's canon varies between the three primary sects, with Sthanakavasis believing in no scripture. Both the Digambara and Shvetambara believe that the "purest" Jainist teachinges were contained within the Purvas, which have been mostly lost. Of the surviving Jain scriptures, the Digambara tend to focus upon the Prakaranas; while the Shvetambara focus upon the Angas.