Muhammad's ﷺ Prophecy is a Great Bounty from Allah

Allah reminds His believing servants with what He has endowed them with by sending Muhammad ﷺ as a Messenger to them, reciting to them Allah's clear Ayat and purifying and cleansing them from the worst types of behavior, the ills of the souls and the acts of Jahiliyyah (pre-Islamic era). The Messenger also takes them away from the darkness (of disbelief) to the light (of faith) and teaches them the Book, the Qur'an, and the Hikmah (i.e., the wisdom), which is his Sunnah. He also teaches them what they knew not. During the time of Jahiliyyah, they used to utter foolish statements. Later on, and with the blessing of the Prophet's Message and the goodness of his prophecy, they were elevated to the status of the Awliya' (loyal friends of Allah) and the rank of the scholars. Hence, they acquired the deepest knowledge among the people, the most pious hearts, and the most truthful tongues. Allah said:

لَقَدْ مَنَّ اللَّهُ عَلَى الْمُؤمِنِينَ إِذْ بَعَثَ فِيهِمْ رَسُولاً مِّنْ أَنفُسِهِمْ يَتْلُواْ عَلَيْهِمْ ءَايَـتِهِ وَيُزَكِّيهِمْ

The merits of 'Dhikr' ذکر (Rememberance)

Dhikr ذکر : or "Remembrance" essentially pertains to the heart, but in so far as the tongue is the interpreter of the heart the oral recitation of a Divine Name or a verse of the Holy Qur'an is also described as Dhikr ذکر . In other words, oral Dhikr ذکر can be worth the name only when it is accompanied by the "remembrance" of the heart. As the great Sufi poet Rumi points out, the recitation of a Divine Name can have no efficacy if one keeps thinking of cows and donkeys while repeating it mechanically with the tongue. One must, however, bear in mind that even a mechanical Dhikr ذکر without the heart being engaged in it is not altogether futile. It is related that the great Sufi Abu ` Uthman, hearing a man complain of such a situation, remarked that one should be grateful to Allah even for this favour of having drawn at least one organ of the body, the tongue, into His service. (Qurtubi)