This is pretty good. It’s particularly strong on the relationship between Shams and Rumi.
Why do the Dervish of Rumi’s Mevleli Order whirl? It’s a meditative practice that seeks to remove the distinction between the human and the devine. Lose the self through whirling and the divine will flood that empty space. This direct becoming has always been deeply suspect for Orthodox Islam and several Sufi saints have been executing for claiming to be God while in the dance. Sufism is also suspect because many of it’s diverse practices may be pre-Islamic, everything from body building, wrestling, caligraphy, music, chanting, pilgrimage, and, of course, the dance.
I’ve used this last one before, but no apologies: I like it.