Exegesis of the saying of Allah the Exalted: "Upon your heart, so that you may be among the warners. In a clear Arabic language."

The Shaykh : Upon your heart. The reason the heart is mentioned here, whereas in most verses it is "upon you," but here it says "upon your heart." Why, my brother? You, the one with the turban. Please stand up. Why was the heart specified over other organs, or over the Messenger (peace and blessings be upon him)?
The student: ... .

The Shaykh : What?
The student: ... .

The Shaykh : No, my brother, the place of seeing Allah is the eye. We, if Allah wills, and you, will look at Allah with our eyes on the Day of Resurrection in the Gardens of Pleasure. The heart is mentioned because the heart is the place of consciousness, the place of consciousness and retention. Therefore, He said: so that it becomes clear that the Messenger (peace and blessings be upon him) did not err in it. And so, when he used to hasten in recitation when Jibril revealed it to him, he would hasten and recite it, Allah the Exalted said: See, Allah has taken charge of that with great care for this noble Qur'an. In what language was it revealed? Answer. Eloquent or not eloquent? Whatever displays the meaning as intended is the most eloquent speech absolutely, and it is the most truthful speech absolutely, and it is from the most knowledgeable of all who have spoken. From whom? From Allah. So the speech of Allah (Mighty and Majestic) is precise and great, and Allah, no one tastes it or savors it except one who reflects upon it. When a person reflects upon the speech of Allah, he knows what is in it of meanings, rulings, and secrets, not in the wording, not in the meaning, not in the explicit thing in the explicit wording, nor in the non-explicit wording; he finds in it the great meanings. Among that