Regarding the Square Forest
Original Source ↗Your 'quadrature' is an individual thing and, in Doc's opinion, quite useful. He called you a 'surveyor'. This is a unique ability that allows those engaged in Dreaming to introduce units of length into dream spaces. Usually, we operate with concepts like zone, forest, City. But you can clearly state B2-E4 with a transit to S5-P9. You would be invaluable if you engaged in calibration cartography.
Now, regarding 'places of captivity.' Chases in the forest indicate that 'power' is pursuing you, or a 'wandering ally'. I advise you to bravely meet it face-to-face. If you're lucky, you might personify it as a human or a 'magical animal.' Then, make an agreement or simply communicate.
Furthermore, clerks, a harem, and hints of sadistic use of your body are clear signs of the First Lower World. Pay no attention to them; explore the territory. In this place, you can learn a couple of siddhis. For example, in a single Lucid Dream, learn to hold your breath for five to six minutes. And if you know, from that threshold to dharana is but a stone's throw.
By the way, if your forest is always flat, it's somewhere closer to the north, because further south, transformations of the terrain begin (like walking on a flat surface, and it starts to rise, and you find yourself climbing it).
And the railways are indeed interesting. They are clearly connected with the movement of the Assemblage Point and, consequently, with dreaming memory. But I calmly cross them without transits. This means the phenomenon of the barrier is individual in nature.