According to Imam, why self purification is difficult at old age?

Imam Khomeini stressed need for purifying intentions

Imam Khomeini recommended the faithful people of purifying their intentions, rectifying their deeds and expelling love of self .

Holy scripture of Quran has very special place in Imam's dynamic thought

Keep disputes and strife far from your hearts: Imam Khomeini

Imam Khomeini advised believers belonging to all walks of society to behave well with people, and in company, and be compassionate and kind.

The harmfulness of an unrefined scholar

Imam Khomeini stressed need for acquisition of the virtues and human nobilities

Imam Khomeini, the late founder of the Islamic Republic, through his theological works has stressed that the acquisition of the virtues and human nobilities and standards is a difficult and great duty which rests upon your shoulders.

Imam Khomeini warned of veils covering heart

According to Imam Khomeini, they know the proofs for the existence of God and the reality of the Resurrection, but these very same intellectual proofs may be veils covering the heart which do not permit the light of faith to shine in.

Refinement of soul and acquisition of virtue according to Imam Khomeini

The learning of these sciences in reality is an introduction to the refinement of the soul and the acquisition of virtue, manners and divine knowledge.