Sheikh Mahmoud Shabestari was one of the famous mystics and poets of Ilkhani era. He was one of the disciples of Baha’uddin Yaghoub Tabrizi; they are buried next to each other in this masoleum in Shabestar. (One of the other professors of Sheikh Mahmoud Shabestari was Amin al-Din.)
Golshan-e Raz or Gulshane Raaz ("Rose Garden of Secrets") ...