Keep looking deeply into your thoughts. Be honest with yourself and what you are thinking. Your thoughts and actions not only affect your reality, they have an impact on those around you and mankind in general. You are powerful for the world.
Thoughts of world peace are important. Holding that grand vision for your planet is valuable work. Peace in the world begins in your mind and is promoted through your actions. Yes, you are one person. One person does make a difference. Think of Martin Luther King, Jr., Mahatma Gandhi, and Nelson Mandela as a few examples. Their peaceful thoughts and actions have changed the very course of mankind. So can yours!