We know that generally, of the characteristics of the blind person is that he walks while stumbling. Therefore, when this blind person was described as walking while hurrying, it is actually a proof that he was on the lookout for the path laid down by Allah (swt) and in love with it. He was also striving to achieve an increase in knowledge and seeking for perfection in conduct.
The one whom he fears is not mentioned here. This is because, the answer is obvious. He fears Allah (swt).
These phrases used are of the gifts of the Qur’an and the productivity of its meanings.
So, whoever comes to you willingly, O’ Muhammad, welcome him! As for the one who turns away, leave him be! It is them who are the losers; as they have missed out on a lot of goodness for themselves by turning away from the religion of Allah (swt).