dimenssion's

i suppose this is the correct area to post this(newbie)
if its not please excuse

I have a long version to this story/dream but I will keep this very short.(if you want the long version let me know)

I am psychic(and believe we all are) I have learned to pay attention to my dreams also. In this dream I had maybe 7yrs ago. It seemed to be a end times dream, the 1st and only one I've ever had. In this dream I saw the sky "crack" which looked much like lighting. but very much different also. the only way i can describe it is(keep in mind im not a tech wizard) you know when you take your mouse,(and on your desktop screen)left click and drag it straight across,and then move it straight up..it creates that shadow sort of box. this is what i saw in the sky in this dream. I have to say this also..i found myself in the sky behind this event..and i could not see this event..but from the front it was in plain sight. Mayn I hope I am describing this in a way you can imagine! It was as if you were walking..with nothing in front of you..then you turn around see this open space of "nothing just darkness", and that "darkness" was there the entire time..but from your point of view you could not see it,nor could you go into it. but now you have turned around and can see it, you could go into it.
Has anyone experienced anything similar??

Now to stop myself from rambiling on ..as I already have I will stop, but any feedback or further questions are welcomed