Every living thing evolved to perceive a very small part of reality. The mechanism that determines how each creature has a umwelt mechanism is called "natural selection". If we think it is a long time to solve this mechanism, it will be appropriate to head to the YUG. Before we talk about YUG, we need to talk about the YUG without changing the sensation that caused it. It does not change the senses, that is, it can be seen with the language, it can be felt with the ear, is the working principle of the brain and nervous system! A congenitally blind person can indirectly acquire these senses by allowing a deaf human brain to "change the senses". Today, this technology is actively being used and developed.