The suitable issues for research on Mahdaviat

In this saying, the author, after reviewing the requirements of research on topics about Mahdaviat, classified " the suitable issues for research on Mahdaviat " into 15 chapters, including: The origin of belief in Mahdi (a.s), reviewing the effects of other religions but Islam on Islam regarding Mahdaviat and specific or metaphoric mahdaviat, meaning of Gheibat (the occultation of the 12th Infallible Imam), the relationship between prayers with Mahdaviat, comparative studies, authenticity of Ahadith on Mahdaviat, content analysis on topics of Mahdaviat, the manners of politeness to the presence of Imam Al-Asr (a.s.), reflection on Ahadith about Imam Mahdi, giving commentary and explaining Ahadith of Imam Mahdi, research on prayers and Ziarat to the presence of Imam Mahdi(a.s), academic polling about the effects of (having) belief in Mahdi on our society, recognizing deficiencies in writing about Mahdi, and enriching the aspect of certainty to his presence in soul.