You grew up knowing there is more to life. You face strong opposition when you try to pursue what your heart naturally yearns after. You have to make hard decisions and live by them. You are the Joshuas and Calebs. You set the trends. You go before others and pave the way. You see a vision no one has yet seen. You walk on the path of the 'impossible'. You love fiercely when no one dares to love more.
Others often misunderstand you and judge you. Almost no one believes in you, and whatever you say (until they witness the victory you won).
There is a particular scene in the movie that depicts accurately the strength of a forerunner -- Diana was overcome by her compassion and love for humanity and went ahead to conquer No Man's Land.