Second Volume, 45Th Letter (What The Word "world" Means?)

Hadrat [1] Muhammad Ma'thum Faruqi (rahmatullahi alaih) says in the 45th letter of the second volume of his Maktubat: 

   My dear son! The world is sweet in appearance, and yet venomous in essence. It is quite worthless. A person who is caught in its trap can never be free again. A person who dies with that poison is a mere carrion. It is madness to lose one's heart to it. It is like sequinned filth, or sweetened poison. A wise person will not fall for such false and deceitful beauty. He will not set his heart on vicious and harmful pleasures. He will spend his sojourn in this life trying to find favour in his Owner's eyes. He will earn what will be useful for him in the Hereafter. He will do his duties as a slave of Allahu ta'ala. He will hold fast to the commandments of Allahu ta'ala. He will abstain from His prohibitions, i.e. harams [2] . Shame on those who run after harmful things instead of doing so!

I'm afraid of hurting someone truely dear;
Day and night I am burning with this strong fear!

[The world, (in this context,) means harmful things which Allahu ta'ala dislikes and prohibits. A person who abstains from the harams is one who has not fallen for the temptations of the world. Allahu ta'ala does not prohibit any worldly tastes or pleasures. What He prohibits is excess and overindulgence in enjoying them. He commands to utilize them in the useful and decent way which He dictates.]

[1] Hadrat: title of respect used before the names of great people like and Islamic scholars.
[2] haram: an action, word or thought prohibited by Allahu ta'ala.