Imam Khomeini explained how sins corrupt the heart

Imam Khomeini through his books and works explained that not only are these illnesses unaccompanied by pain, but they also bring apparent pleasure. Meetings and sessions of backbiting are very warm and sweet! Love of the self and love of the world, which are the roots of all sins, are pleasurable.

What is Imam’s viewpoint about divine guidance?

Imam Khomeini Underscored Status of Divine Savior

Supplications of the month of Sha‘bān are the greatest sources of Divine teachings

Imam Hossein's movement saved Islam, inspired Imam Khomeini-led Islamic Revolution

Imam Khomeini used to issue congratulatory messages on birth anniversaries of the infallible, the truthful successors of the holy prophet of Islam and stressed to follow their footsteps in all arenas. The late founder of the Islamic Republic also said time and again that the Islamic Revolution was inspired by Imam Hossein's divine movement.

Imam Khomeini: Husayn ibn ‘Alī (‘a) is the essence of Prophethood and the reminder of Wilāyah, ...

Sahifeh-ye-Imam, Vol. 14, page 349

Imam Hussein and his Companions Shielded Islam: Imam Khomeini

Imam Khomeini the great spiritual and religious leader of the Muslim world revived genuine teachings of the household members of the holy prophet of Islam and hailed the companions of Imam Hussein (PBUH).

Imam Hussein and his Companions defended of Islam.