Why Imam Khomeini sometimes didn’t respond to greetings of residents in Najaf?

An Iraqi citizen has described very interesting memoirs regarding Imam Khomeini’s years of exile in Iraq and his stay in the holy city of Najaf. During a visit to Iran, the Iraqi guest recalled that sometimes Imam did not use to respond their greetings during unintended encounters.

Human societies must preserve Imam Ali (PBUH)’s legacy, Imam Khomeini explained

When did Imam Khomeini used to pay pilgrimage to Karbala?

When did Imam Khomeini used to pay pilgrimage to Karbala?; Memoirs about Imam Khomeini

What was reason behind Imam’s anger at memorial ceremony?

What was reason behind Imam’s anger at memorial ceremony?; Memoirs about Imam Khomeini

Imam's comprehensive personality triggered victory of revolution

Ayatollah Sistani urges security forces, protesters to avoid violence

Grand Ayatollah Ali al-Sistani, the top Shia cleric of Iraq, has urged security forces and protesters to avoid violence, expressing sorrow over some sporadic unrest that has led to several casualties.

Imam Khomeini advised businessmen and merchants to enlighten public

When merchants met Imam at the time, they asked him about their most important duties and obligations in those circumstances. At this Imam replied that their major duty was to enlighten people.

He used to recite supplications daily at Imam Ali (PBUH)'s holy shrine in Najaf

It has been recalled through a series of memoirs that the late founder of the Islamic Republic used to recite some recommended supplications at the holy shrine while his stay in Najaf.