This matches my experience eerily well, especially the "one unit deeper" aspect. I feel like I can voluntarily summon this experience in my mind and travel thro

This matches my experience eerily well, especially the "one unit deeper" aspect. I feel like I can voluntarily summon this experience in my mind and travel through it forever. It feels frightening, in a way, being confronted with the depths of an unexplored internal mental chasm. Do you have other "threads" with similar phenomena, or is there a singular thread that branches?