Breathing mask construct

There's still a lot of tiny dust particles flying around.

When I took a nap yesterday evening, a furry construct (a thick and furry tail?) appeared in my breathing channels to protect the lungs against the dust. I suspect it wasn't me, who created it.

There was something amazing in one of the dreams. Can't remember it though. In one of the dreams, I was playing infiltration of a base or something, by flying through the buildings.