stylistic:tone, information:classification
Religious denomination

As Edward G. Browne noted, the three most prominent mystical Persian poets, Rumi, Sanai and Attar, were all Sunni Muslims and their poetry abounds with praise for the first two caliphs, Abu Bakr and Umar ibn al-Khattāb. According to Annemarie Schimmel, the tendency among Shia authors to anachronistically include leading mystical poets such as Rumi and Attar among their own ranks, became stronger after the introduction of Twelver Shia as the state religion in the Safavid Empire in 1501.