The main problem is that most commentators are accustomed to thinking of spiritual schools as 'systems', which are more or less alike, and which depend upon dogma and ritual: and especially upon repetition and the application of continual and standardised pressures upon their followers.The Sufi way, except in degenerate forms which are not to be classified as Sufic, is entirely different from this.
Idries ShahOne can give or withhold in a manner far more effective, sophisticated, useful, which is quite invisible to people who think that giving or withholding is done by external assessment. If you seek some mark of favour or 'promotion', know that you are not ready for it. Progress comes through capacity to learn, and is irresistible. Nobody can stand between you and knowledge if you are fit for it.
Idries ShahPeople who speak or act in an ordinary fashion are most likely to be those who have been the recipients of higher experiences. But because they do not rage around, wild-eyed, people think that they are very ordinary folk and therefore not aware of anything unknown to the general run of man.
Idries Shah