What did Imam used to advise believers to observe during Ramadan?

Imam delivered his piece of advice to dear son Hajj Ahamad in dream

(A memoirs by Hojjat-al-Islam Seyyed Sirajuddin Mousavi)

The Supplication for the 14th Day of Ramadan

Imam Khomeini pointed out fatal moral diseases and consequences

Imam Khomeini through his theological works has explained that a person afflicted with ‘ujb should know that this vice sows the seeds of many other vices and serves as the source of such offences.

Pay attention to our own flaws

Imam Khomeini: Knowledge, sometimes, gives rise to pride, throwing one off the straight path.

sahifeh-ye-Imam. V 8. P 291

The light and the darkness of knowledge (13 & 14th of Ramadan)

Extracted from Imam's historic speech at 13 & 14th of Ramadan.

The Supplication for the 13th Day of Ramadan