An article in Firstpost India discusses how Sufism runs as a counter to hardline ideologies.
From the article:
Remarkably, the first focus on this energetic facet of Sufism was carried out by Idries Shah around 50 year ago. Entitled “The Sufis”, his book had the renowned western writer Robert Graves writing a foreword for it. It was praised as “a seminal book of the century” by The Washington Post. Since then, much of the work on the similar lines has been carried out.