There is an experience archetype in my world that goes like this: you have been carefully navigating around a landscape of walls, or inching forward against an overwhelming current. Intently battling hard obstacles. Then you tentatively try walking right into a wall, and realize that they are all actually just air, and you can just walk straight through them. Or you find a turn of mind where you can just stand up straight against the wrenching current—not through huge effort and force, but through the current suddenly losing all physical relevance to your free motions.
Is this familiar? What circumstances are like this?