When I was messing around at the end of my last playthrough with some debug warping to unused rooms or just messing around, I ended up finding out the name of this Black Space room is Incubation. That stood out to me as really odd. Incubation? As in life being created? In this room you finds versions of your dream friends dead on the ground and split, swimming in red pools, or their heads sticking out of the walls like Basil's is here. Is it implying their being born here? Like in the insane unnatural ecosystem of Headspace, is this where Omori's dream friends and sister are "born"? Or maybe it's just a room based off the idea of incubation with no grander implication. Strange either way.