- Dervishes try to approach God by virtues and individual experience, rather than by religious scholarship. Many dervishes are mendicant ascetics who have taken a vow of poverty, unlike mullahs. The main reason they beg is to learn humility, but dervishes are prohibited to beg for their own good. They have to give the collected money to other poor people. https://en.wikipedia.org/wiki/Dervish Registered shipping. Provenance/Known History: Ex. Private UK collection. Collected before 1970. After that A.A. Gallery, UK. Important information: - Due to new custom regulations we can no longer ship outside the E.U. Please make sure you have an EU shipping address before bidding. - A declaration of authenticity by my shop is provided with this lot. - Please do not pay for a won item before you are finished bidding in the auction. The system will not be able to combine your orders into one shipping if all items aren't paid at once.