Imam al-Mahdi

How can we collectively, as Shia Muslims, help hasten the reappearance of Imam Mahdi (afj) as soon as possible? Sayyed Mohammad Al-Musawi	Is it true that Ayatollah Muhammad Asif Mohseni has written in his book "Mashra'at Bihar al-Anwar" that the people cannot benefit from Imam Mehdi (ajtf) in religious matters during his occultation and that those who believe in such things are wrong? Sayyed Mohammad Al-Musawi
Is Ahmad al-Hassan a direct descendent of Imam Mahdi (a)? Sayyed Mohammad Al-Musawi	What will be the roles of Prophets Idris, Khidr, and Elias (peace be upon them) when Imam Mahdi (ajtf) returns? Sayyed Mohammad Al-Musawi