For what it is worth:

I have spoken with one of these D'Jin. It was during an extended out of body experience (Brought on by a very rare designer drug based off the mescalin molecule "active at 5 micrograms, I took 10).

So as I wandered-exploring through near space, An astral being approached me. It expressed that it was impressed to see me out there, "for it as been since one of your kind has journeyed so far". After a brief introduction the being offered to grant me one wish.
This was a very serious thing and I knew the gravity of the situation deep within my soul.
The being implanted images within my mind. Wealth, Women, knowledge of past lives. I thought deeply, I sought the most valuable gift and I replied. "I want to know the truth".
The being recoiled in horror, bound by it's oath. "I cannot tell you those things, but I have promised a thing and am bound to fulfill it. I cannot show you this thing, but I will go and send one who can.".

Now I share these things for this reason.
I confirm the D'jin are spiritual and eternal beings, they are also bound by laws.
The do enjoy deception, they are deceptive beings and will take advantage of men of weak mind.

Believe what you will, but this happened to me and it brought about my true awakening.
Moreover I had been sent a message by a woman I had never met as a child. She saw that this would happen to me and knew that I was unique among many.
She was a witch, she saw me in a vision and forewarned me of a thing that was not to happen for many years.
It is all very strange to me.

Perhaps I say too much, but I tell you this.
The D'jin exist for one has spoken to me and while not of it's own volition it opened the mystery of creation unto me.
Just a wondering human,traveling the void seeking knowledge.