It may quite possibly happen therefore that you may read the Qur'an endlessly, turn its pages laboriously, recite its words beautifully, study it most scholarly, and still fail to make an encounter with it that enriches and transforms your whole person. For, all those who read the Qur'an do not profit from it as they should. Some remain unblessed; some are even cursed.
The journey has its own hazards, as it must, just as it has its own precious and limitless rewards. Many never turn to it, though the Book always lies near at hand, and many are turned away from its gates. Many read it often, but come back empty-handed; while many others who read it never really enter its world. Some do not find, but are lost. They fail to hear God even among His own words; instead, they hear their own voices or those other than God's. Still others, though they hear God, fail to find inside themselves the will, the resolve and the courage to respond and live by His call. Some lose even what they had and, instead of collecting priceless gems, they return with back-breaking loads of stones which will hurt them for ever and ever.
What a tragic misfortune it would be if you came to the Qur'an and went away empty-handed - soul untouched, heart unmoved, life unchanged; 'they went out as they came in'.
The Qur'an's blessings are limitless, but the measure of your taking from it depends entirely upon the capacity and the suitability of the receptacle you bring to it. So, at the very outset, make yourself more deeply aware of what the Qur'an means to you and what it demands of you; and make a solemn determination to recite the Qur'an in an appropriate manner."
Source: “Way to the Quran” - Khurram Murad