There are billions of people on earth. They are all transmitting thoughts and impressions, most of which are not directed towards enlightenment. If you are not focused, you will pick up these energies.
America is our continent. You feel in the daily language that Americans use the word "America" to erase the rest of the continent from the map. And, of course, the language is clearly a reflection of the geopolitical reality: the domination of the United States over the rest of the continent.