Salaamun alaikum Ayman, all,
A fantasy is clearly a thought and not a being. In my understanding "jinn" could mean "fantastic/hidden beings" or "fanciful/hidden beings" rather than "fantasies", as its usage in the great reading indicates a "being" rather than a "thought". For example:
37:158 And they invented a kinship between Him and the Jinn. But the Jinn know that they will be gathered.
Here Jinn appears to be "beings" rather than "thoughts". How can a "fantasy" know that it will be gathered ?
51:56 I did not create the Jinn and the humans except to serve Me.
How can a "fantasy" serve The God ? Here Jinn and humans are used in the same context as "beings" rather than "thoughts" with the ability to serve.
27:17 And Solomon's soldiers were gathered, comprising of humans and Jinn and birds, for they were to be spread out.
How can "fantasies" be soldiers ? The context clearly indicates they are "beings" rather than "thoughts".
34:12 And for Solomon the wind was given, traveling one month coming and one month going, and We caused a spring of tar to flow for him. And from among the Jinn are those that worked for him by his Lord's leave; and any one of them who turns from Our commands, We shall cause him to taste the retribution of the Fire.
34:13 They made for him what he desired of enclosures, and statues, and pools of deep reservoirs, and heavy pots. "O family of David, work to show thanks." Only a few of My servants are appreciative.
34:14 Then, when We decreed death for him, nothing informed them of his death until a worm kept eating from his staff, so when he fell down, the Jinn realised that if they had known the unseen, they would not have remained in the humiliating retribution.
How can "fantasies" work ? (34:12). How can fantasies make statues and pots ? (34:13). How can fantasies realize ? (34:14)
27:39 A powerful being from among the Jinn said: "I will bring it to you before you rise from your station. For I am strong and trustworthy."
How can a "fantasy" talk ?
41:25 And We assigned to them companions who adorned their present and past actions. Thus, the retribution has been deserved by them the same as previous nations of Jinn and humans; all of them were losers.
How can there be a nation of "fantasies" ? Jinn here is used in the same context as humans being nations, clearly indicating "beings" rather than "thoughts".
27:10 "And throw down your staff." So when he saw it shake as if it were a Jinn, he ran away and would not turn back. "O Moses, do not fear, for My messengers shall have no fear from Me."
How can one compare a physical object to a "fantasy" ?
55:33 O tribes of Jinn and humans, if you can penetrate the outer limits of the heavens and the Earth, then go ahead and penetrate. You will not penetrate without authority.
How can there be a tribe of "fantasies" ? Here again humans and Jinn have the same context of "beings".
6:128 And the Day We gather them all: "O tribes of Jinn, you have managed to take many humans." Their supporters from the humans said: "Our Lord, we have indeed enjoyed one another, and we have reached our destiny to which You delayed us." He said: "The Fire is your dwelling, in it you shall abide eternally, except as your Lord wishes." Your Lord is Wise, Knowledgeable.
How can fire be the dwelling of a "fantasy" ?
Electromagnetic waves are "hidden" but can now be detected by various technologies. Perhaps in the future when people will have the technology to detect the presence of Jinn, they will not be as fantastic/hidden any more !!
Peace,
Tanveer