O son, enlighten the heart with prayers. Suppress all lust with piety. Strengthen your heart with faith. Brighten it with wisdom. Overpower it with the remembrance of death. Let it beware of its mortality. Frighten it with the vicissitudes of the times. Make it take lesson from the fate of the dead. Wander through the ruins of the settlements of the past. Ask these ruins: what did these people do, where have they gone, where they have settled now. This will make you realize that they have departed from their friends and relatives, and that they now rest in the wilderness of the graveyard where you will also have to go sooner or later. Rectify your lapses. Do not sell the Hereafter for the world. Do not speak in the state of ignorance. Refrain from unnecessary talk. Do not tread the path from which you can apprehend the danger of running astray. Withhold your step from evil for that is the way to safety.