As for your life in Barzakh (the Purgatory)

 "As for your life in Barzakh (the Purgatory), if you depart, God forbid, without reforming yourself, God alone knows what conditions and states will be prescribed for you therein. Perceptions of the inhabitants of this world are incapable of seeing, hearing, and smelling the affairs of that world. Whatever you hear of the darkness, the dreads, and the pressures of the grave, you compare them with this-worldly dreads and pressures, but you are mistaken. O God, help us, and rescue us from the calamity of what we ourselves have prepared with our own hands."

SOURCE: FORTY HADITH | IMAM KHOMEINI (R)