It is rightly said "The miracle isn't that I finished. It is that I had the courage to start." A marathon signifies not just running but it's about leaving your own race. A race against all odds to enjoy a healthy and a beautiful lifestyle.
"Courage to start strength to endure resolve to finish" (The marathon)
Precisely speaking it requires certain amount of courage in order to push ourselves towards our goal. Along with courage physical and mental strength is required to achieve the goal. Lastly there must be firm determination to finish the goal ( The marathon ).