Grand Ayatollah Montazeri became an inspiration for reformists
The opposition in Iran has called on supporters to turn out in huge numbers for Monday's funeral of Grand Ayatollah Hoseyn Ali Montazeri.
Thousands of people have already been out in the Iranian city of Qom, to mourn the death of the 87-year-old.
BBC News website readers have been emailing their memories of one of the country's most respected dissident figures.
Ayatollah Hoseyn Ali Montazeri was my father's close friend. We live in his neighbourhood in the city of Qom. My father is one of the few clerics who prayed instead of Ayatollah Montazeri during his illness. I saw him frequently because my father used to go to his home every day. He was a very kind, humble, and open-minded person.
Mohammad, Qom, Iran
This year I lost my grandmother and father but I managed to control myself. Now, I can't stop crying. It's not about religion. It's about something that my English is not good enough to explain.
For the post-revolution generation, the late Montazeri had been the butt of very unkind jokes thanks to the regime's deliberate and malicious misrepresentation. That was until he came out as a fierce, outspoken, and dauntless critic of the Iranian establishment in the wake of the preposterous June election results. His image mostly changed amongst the youth and he was respected as the spiritual leader of the Iranian opposition movement. His words will continue to be inspirational.
His death makes dictators happy. He was against oppression. He fought for human rights for 30 years. His death is a great loss, not only for Iran's Green Movement, but also for all reformists in the Persian Gulf region.
Mani, Esfahan and Iran
Ayatollah Montazeri has died but his attitudes will never be forgotten. The Green Movement will never lose hope. We will continue his holy pass towards freedom. I hope a day comes when we see the dreams of this holy man come true. May his soul rest in peace.
An unknown boy, Qom
He has passed away but his spirit amongst the Iranian people seeking freedom, powers the motor of the revolution to a better life and country. I am sure that many people from all over Iran will attend his funeral and express their respect for this honourable person.
He was an honest man and died with honesty. During his life he told a lot of truths. My condolences to his family.
I am a student in Sharif University of Technology. The students were shocked by this. We are trying to organise several celebrations for Ayatollah Montazeri in our university in this week. Not only was he a grand cleric, but he was also accepted by different types of people whether they were religious or not. In the last century, there have been a lot of humans who have wanted immortality in Iranian history, but Montazeri never paid attention to his fame.