National Geographic : 1921 Apr
HOLY MEN OF PERSIA READING THE KORAN The dervishes are the religious mendicants of the East who levy tribute on the rich and poor alike. Sitting inthebazaars, apparently lost inpious medi tation, they startle the passers-by with their unvarying yell, " Ya Hakk ! Ya Hakk! " (Oh Truth ! Oh God !),offering atthesame time aflower oralemon, in return for which a present is expected.