What kind of moral maladies can destroy humans spiritually?

My hope in the mercy of He Whose mercy embraces all things: Imam's letter to his daughter- in- law

Oh my daughter, don’t be so overconfident of mercy that you neglect the Friend, nor should you despair and thus become one of those who has lost both this world and the hereafter.

Blessed month of Ramadan is an invitation to God's Feast

Imam through his theological works stressed that the holy month of Ramadan is an Invitation to God's Feast.

Imam's quiet companion and pleasant companionship

Nature commands man to be grateful to his benefactor, Imam Khomeini explained

Imam Khomeini through his theological works highlighted that thankfulness is natural and man’s nature commands man to be grateful to his benefactor.

The holy prophet's knowledge was derived from the Divine Revelation

The Prophet (S), whose knowledge was derived from the Divine Revelation, and whose soul was so great that it could preponderate over the spirits of millions upon millions of human beings.

Imam Khomeini: The essential purpose of revelation is to develop divine knowledge in man.

God Almighty always seeks for an excuse to shower His mercy

Imam Khomeini through his theological works has stressed that God Almighty is the Compassionate and always seeks for an excuse to shower His mercy.