What are main obstacles on the way to understanding Quranic interpretation from Imam’s views?

One of the obstacles towards understand the Quran is to induct the idea that in order to understand the Quran, one has to be a commentator of the Quran while taking moral, ethical and mystic benefit from the Quranic verses is nothing to do with tafseer (interpretation) and hence ordinary people should also be encouraged to pay attention to the ethical and moral aspects of the stories mentioned in the Quran.

Why Imam Khomeini showed discomfort for welcoming with Salwat?

Imam on several occasions reminded that if they chant Salwat with real intention for the holy prophet , then it was a great practice which would bear divine reward for them.

Imam Khomeini depicted Eid al-Fitr, divine reward for believers

Imam Khomeini, the late founder of the Islamic Republic, through his works, messages and speeches has underscored the spiritual significance of feast of Eid al-Fitr.

An Introduction to Imam Khomeini‘s famous book of “an exposition on Forty Hadith”

Islamic scholars, motivated by a tradition from the Prophet Muhammad, which promises Divine Rewards for scholars who collect forty traditions, compile hadith narrations in groups of forty.

Sayyid Hassan Khomeini:

The sacrifice of Imam’s wife in succeeding the revolution won't be forgotten

“The practical behavior of Imam’s dear wife in all stages of her life was such that everyone could recognize her dignity and greatness. There is no doubt that the Islamic movement which resulted in establishing the Islamic republic owes its achievements to a great deal to the sincere efforts of all revolutionary Iranian people especially Imam's close relatives and his honorable wife whose sacrifice in succeeding the revolution won't be forgotten.” Said Hujjat ul-Islam Sayyid Hassan Khomeini in a message on the anniversary of passing away of Lady Qods-e Iran, Imam Khomeini's wife.

Imam exposed ant-Muslim plots by Rushdie and imperialistic western powers

It is now more than a quarter century since the Father of the Islamic Revolution, Imam Khomeini (may God bless his soul) issued the historic death sentence against apostate Salman Rushdie, days after the satanic novel he wrote to insult Islamic sanctities, led to the loss of Muslim lives in various parts of the Muslim world.

On February 14, 1989:

The Issuance of Imam Khomeini's Historical Decree on Salman Rushdi's apostasy

On February 14, 1989, Imam Khomeini issued a decree toward Salman Rushdi, the author of the blasphemous book, The Satanic Verses.

Imam Sadiq (PBUH) was most famous character in terms of knowledge, virtues

Imam Sadiq (PBUH), the successor of the holy prophet of Islam, was the greatest most famous character in terms of knowledge, jurisprudence, parentage, worship, spiritual state, and ethical virtues.