I had a dream last night about the forth planet, Anwaa' Rububia as described in dream mode.

That there was an ancient blockade preventing entrances and exits' to this place.

The people were placed there as to be categorised, and to be kept in order, I think a disciplined order of regulation.

They are described as being contained, what did they do?

That there is a port hole door, but was blockaded.