It is mentioned in a Hadith that “You should make Allah beloved in the eyes of the people and Allah Ta’ala will make you His beloved.” (Kanzul Ummaal) That is, address the people, and by reminding them of the favours and bounties of Allah, make them turn towards Allah. Educate them in such a way that they begin to yearn for Allah Ta’ala. The result of this will be that Allah Ta’ala will begin to love you. That is, He will shower you with the highest form of mercy. It is obvious that this work can only be carried out by an aalim who practises on his knowledge and no one else. What great glad-tidings are in this for the ulama and sufis! What bounty can be greater in this world and in the hereafter than becoming the beloved of the Real Master? (O Allah! make me Your best servant as well – Aameen).
It is related in a Hadith that the one who will practise on his knowledge, Allah will grant him knowledge which he does not know. (Hulyatul Awliyaa) That is, he will be given the knowledge of unknown things and thereby progress even further with his knowledge.