Abu Saeid Aboalkhair is a mystic of Khorasan School that Theories and  thoughts in of This school are close to Eastern thoughts. Sepehri is one of the famous contemporary poets that many has been said about his poems, especially about his mystical thoughts. There are several views about his poems sush as:Iranian Islamic mystical principles, Hindi and Eastern mystical principles, or without any Mysticism.

Selecting mystical terms and concepts in Sepehri’s poems is a suitable way to analyse his mysticism. In order to lighten the nature and quality of his Mysticism, we have selected term of Fana among so mony mystical terms and concepts in his poemsWe have to express and compare them with also tried Abo saeid  Abolkheir terms, one of the greatest of muslim mystics.