Why isn't the S(h)urangama sutra more popular? I've read that this sutra is one of the most direct routes to enlightenment and one of the most important, yet because future generations cannot handle this sutra, its disappearance  was foretold.      

I can find only a few English versions of this on the web and they each vary considerably, as if to indicate the prophecy is coming true. Among Buddhist teachers of certain (esoteric?)  sects this is a favorite, but most teachers largely ignore it.       

Can someone shed light on its relevance to the modern aspirant? What are its criticisms?         

Why is it not more popular if its dire warnings are true? Are there reliable or canonical versions to follow? What is the history of this sutra?       


  Within Buddhism, there are very many important sutras. However, the most important sutra is the Shurangama Sutra. If there are places which have the Shurangama Sutra, then the Proper Dharma dwells in the world. If there is no Shurangama Sutra, then the Dharma-ending Age appears. Therefore, we Buddhist disciples, each and every one, must use our strength and our blood, sweat, and toil to protect the Shurangama Sutra. In the Sutra of the Ultimate Extinction of the Dharma, it says very, very clearly that in the Dharma-ending Age, the Shurangama Sutra will be the first to disappear. The rest of the sutras will follow. As long as Shurangama Sutra does not disappear, then the Proper Dharma Age is present.     


(Extract from introduction to Sutra)
In the introduction to her translation of the Ugraparipṛcchā Jan Nattier notes that texts are more likely to have been translated into English if they have two features: firstly if there is a extant Sanskrit text; and secondly if they have been influential in Japanese Buddhism. And thirdly if they:


  portray the Buddhist messages in terms congruent with certain core
  western values such as egalitarianism (e.g. the universal potential
  for Buddhahood according to the Lotus), lay-centred religion (e.g.,
  the ability of the lay Buddhist hero of the Vimalakīrti to confound
  highly educated clerics in debate), the simplicity and individuality
  of religious practice (e.g., the centrality of personal faith in
  Amitābha in the Sukhāvatīvyūha), and even anti-intellectualism (e.g.,
  the apparent rejection of the usefulness of rational thought in the
  Heart Sūtra, the Diamond Sūtra, and other Perfection of Wisdom texts).
  (Nattier. A Few good Men. 2003, p.6)


Many scholars consider the Śūraṅgama Sūtra to have been composed, or compiled from other sources, in China. That the Chinese did this kind of thing is quite common. The well known Heart Sutra is another prominent example. There is no Sanskrit "original". And on the whole the themes do not appeal to Westerners. So the text is unlikely to appeal to a Western Audience. Vast differences in English translations are common because of the range of ability of translators and the very great difficulties of rendering ancient Chinese into English. 

The apocalyptic themes of the text are exaggerated versions of such predictions which occur throughout Buddhist literature. Like many millennial predictions of disaster they simply have not come true. The end of the world simply fails to happen, no matter who is predicting it, and there is always someone predicting it. 

While the Śūraṅgama itself may be fading out as because it is irrelevant to modern Buddhist practice, there is resurgent interest in other Buddhist texts. Witness the massive project funded by the Numata Foundation to translation the entire Chinese tripiṭaka. Also the there is huge interest in doing comparative work on the Pāli Nikāyas and Chinese Āgamas. At the grass roots level Buddhism continues to be moderately popular in the West, but is being revived in China as restrictions on religious observance are relaxed.