does it have any meaning or it just seemed to me ?
it also happened to me when I opened the sigil that the lines flashed and disappeared, and outside the sigil the space around went dark
and that on the sigil I saw as if gold dust were floating
it is normal ?
Lots of people including me see eyes when meditating. I tale it as a sign that my wards need topping up as I don’t really want randoms passing by to start staring at me.
I also get patterns kind of like the one above, and they often rotate slowly around the center. I take those as nothing useful and don’t worry about it. If I’m in deeper trance they ca resolve into scenes like watching a movie. I once had the rotating turn into me being a bird wheeling in the sky watching people in Victorian dress walking on the ground. I just wrote it down in my dream journal and maybe someday I’ll link it to something, but probably not.
That’s 100 percent normal for opening sigils, that’s exactly what you want. If you read E.A.'s tutorial about it, you got what happens to most people written right there:
Gold dust I don’t get myself, but others do get it and it may be what they call “static rain”. In which case that’s also what most get.