How Islamic Revolution is associated with Ashura or Arbaeen?

The role of Imam Hassan (PBUH) for the cause of Islam

Imam Khomeini highlighted pious character of holy prophet and his pure progeny

The honorable prophet of Islam left behind the "Thaqalayn" (the holy Qur'an and his pure progeny) for the guidance of the Muslims and the whole world.

On the Occasion of Arbaeen

Martyred Leader’s coffin carried toward Tehran's Azadi Square during funeral procession

Millions of mourners lined the streets of Tehran on Monday morning as the coffin of the martyred Leader of the Islamic Revolution, Ayatollah Seyyed Ali Khamenei, was carried in a historic funeral procession to Azadi Square.

What had Imam Khomeini said about the month of Muharram in reviving Islam?

How did Imam define link between the Islamic revolution and Ashura?

Imam's greatest asset was optimism towards God Almighty: Seyyed Hassan Khomeini:

Seyyed Hassan Khomeini says the optimism in God the Almighty had been great assets of the late founder of the Islamic Republic.