Look at The Whispered Prayer (Munajat) of Sha’baniyah. One day I asked Imam Khomeini (ra) which supplications he likes and enjoys more. He said, “Supplication of Kumail and the Sha’baniyah supplication.”
Actually they are both recommended for the month of Sha’ban. As you may know, Dua Kumail was originally recommended for recitation on the eve of the 15th day of Sha’ban. Sha’baniyah supplication, which has been narrated from the Imams (as), is also recommended for the month of Sha’ban.
The tone of these two supplications are very similar. They are both romantic. In the Sha’baniyah supplication we read, “if You (God) decide to send me to hell, I shall declare to its inhabitants that I love You.”
And in the Kumail supplication it reads, “if You leave me with speech, I will lament for You from the midst of the fire's inhabitants with lamentation of the hopeful: I will cry to You with the cries of those crying for help; I will weep to You with the weeping of the bereft.”
We should establish a bond with these prayers and make our hearts tender.
The heart is an amazing thing: For humans it (the heart) sometimes becomes a means towards reaching the highest levels of heaven and the climax of spirituality. Sometimes, it is the other way around, it turns into a heavy stone that clings to their feet, forcing him or her to fall deep, downward into an ocean or valley; it can drown or crush a human. If you attach your heart to money, lust, power or the like, the attachment becomes a heavy stone; it’s not a heart any longer.
October 4, 2004
(Source: http://english.khamenei.ir)