[31 May 2012] Imam Khomeini photo & poster exhibition opens in Tehran - English An expo dedicated to a man who changed the course of history during his lifetime. Deldideh which means "seen by heart" in Persian is the title of a festival that showcases photographs and posters related to the late founder of the Islamic Republic of Iran. The exhibition has been organized to remember Grand Ayatollah Rohollah Mousavi Khomeini known to his followers as Imam or great spiritual leader, prior to the anniversary of his demise.