The Meaning of Allah the Exalted’s Saying: “Had We sent down this Qur'an upon a mountain”

Question:
Here, one of the brothers asks, saying: Allah, Blessed and Exalted is He, speaks about the Qur'an, and The brother asks: Does this mean that if the Qur'an were recited to a sick person, the illness would be removed, for example, by the splitting of the rock?

Answer:
No, the meaning of this noble verse is that the Qur'an is great, and that if the stones were addressed with it, they would split apart. Have you not seen, or have you not read, that when Allah, Glorified and Exalted, manifested Himself to the mountain in the time of Musa (peace be upon him), He made it crumble into dust, collapsing from the greatness of Allah, Mighty and Majestic? So the speech of Allah is great. If the solid mountain were addressed with it, it would split apart.
But the human heart is harder than the stones . The human heart can be harder than stone with regard to the Noble Qur'an, and this is a great calamity.
There is no doubt that mountains and stones have perception; they know their Lord, Glorified and Exalted, and some of the stones have perception and know their Lord. They humble themselves before Allah, Mighty and Majestic. But this human being, if he is afflicted with disbelief and turning away, his heart becomes harder than stone. Yes.