Farid ud-Din Attar ("the pharmacist"), was a Persian Muslim poet, theoretician of Sufism, and hagiographer from Nishapur who had an abiding influence on Persian poetry and Sufism. The thought-world depicted in `Attar's works reflects the whole evolution of the Sufi movement. The starting point is the idea that the body-bound soul's awaited release and return to its source in the other world can be experienced during the present life in mystic union attainable through inward purification. In explaining his thoughts, 'Attar uses material not only from specifically Sufi sources but also from older ascetic legacies. Although his heroes are for the most part Sufis and ascetics, he also introduces stories from historical chronicles, collections of anecdotes, and all types of high-esteemed literature. His talent for perception of deeper meanings behind outward appearances enables him to turn details of everyday life into illustrations of his thoughts. The idiosyncrasy of `Attar's presentations invalidates his works as sources for study of the historical persons whom he introduces. As sources on the hagiology and phenomenology of Sufism, however, his works have immense value. Influence on Rumi `Attar is one of the most famous mystic poets of Iran. His works were the inspiration of Rumi and many other mystic poets. `Attar, along with Sanai were two of the greatest influences on Rumi in his Sufi views. Rumi has mentioned both of them with the highest esteem several times in his poetry. Rumi praises `Attar as follows: Attar has roamed through the seven cities of love while we have barely turned down the first street."