Once input has been filtered, it will be processed by the brain in order to gain meaning from it.  This process is called the ‘internal map’.  It is as if your brain dissects and organizes the information into a pattern or a picture that it can make sense of.  If it sees a pattern it recognizes, it will automatically apply meaning to the input based on that existing pattern.  If it doesn’t recognise the input or pattern, it will create a new map and apply the most likely meaning based on past experience of similar input.  It happens in a fraction of a second.

Whatever meaning the brain maps out for the input, it creates an internal state of being.  You can imagine this very easily if you think about the last time you heard some bad news.  You processed the input in a way that you understood that the meaning was negative, which led to an internal state of being such that you might have started to feel angry or sad or displeased.  You might have even physically felt a response to the meaning such as a tightening of the chest or a quickening of the pulse.