Generally speaking, people have three kinds of consciousness: conscious, unconscious, and subconscious. The basic consciousness of these three kinds of people, since the functions are so different, must have distinct boundaries, which must be attributed to three different brain cells in the brain or different brain tissues.
The first category is the subconscious. This kind of consciousness is a kind of consciousness that is born from ancient times and is the innate and most instinctive for the natural law of life.
The second category is called neutral consciousness. This kind of consciousness is purely a convenience, because it can save the trouble of thinking, and this convenience needs will greatly benefit the survival of the living body.
The third category is called the main consciousness. This kind of consciousness is the process of evolution from lower animals to higher animals; as long as there is such a consciousness, it can symbolize a level of life.