A Pahlavan is expected to be able to cross mountains, deserts, and waters (physically and emotionally). Not only strong in body they are expected to be be pure in spirit and courageous in character.
Honest in words, righteous in action and loyal helpers to those in need; they symbolize the epitome of [hu]manhood.
One does not refer to oneself as a Pahlavan, it is a title bestowed based on merit and character.
These characteristics originate from traditional values of Zurkhaneh, a kind of heroic behaviour epitomizing chivalrous qualities; so called Javanmardi in Persian.