ImamateTHE NECESSITY OF IMAMS' EXISTANCETHE CHARACTERISTICS OF IMAMA Brief Glimpse on Imam Mahdi’s LifeThe Time Before Martyrdom of Imam Hassan AskariImam Mahdi (p.b.u.h.) in Koran & HadithsImam Mahdi (p.b.u.h) in other Religions world viewOccultationShort Occultation Vs Long OccultationThe Benefits of the Hidden ImamVisiting the BelovedA long lifeAwaitingThe Time of His DeliveranceBackground and signs of his ReappearanceAimsHis programsAchievements of his ReignCharacteristics of his ReignFeatures Harmful to Mahdaviyat