Imam Khomeini recommended faithful people to be ready for their world hereafter and explained as following:
Fear God! Beware of the aftermath of your deeds! Wake up from the sleep of negligence!
Think a little, look ahead, weigh the consequences of yours deeds, keep in mind the perilous events which take place after death, the pressure of the grave, the world of barzakh (the period between death and resurrection), and do not neglect the difficulties which will follow that.