Swamped

Close your eyes, and run at it. Either its some complex illusion affecting your perception of your limbs as well as your sight, and you can go through it if you give yourself enough momentum that you cant stop... or maybe its simply invisible to whoever you're communicating with. But at least in that case, it should become obvious to them that there's something blocking your path. Make sure you position your body to receive minimal harm if there really is a barrier.