All realities construct from models, which are individually defined. Reality tunnels are approximations, metaphors, or allegories for what appears going on in The Reality. We live in a world where we all are negotiating on for behalf of our stories.
Everybody abstracts a different reality. If I walk into a room, I abstract the reality I am prepared to abstract. The signals of interest are received by my brain, then reports and organizes them into their established grooves which has been laid down by past experience. We all have different reality tunnels, an individual’s brain will accept some signals and ignore others.