It is always important to know when something has reached its end. Closing circles, shutting doors, finishing chapters, it doesn't matter what we call it; what matters is to leave in the past those moments in life that are over.
Look at what you want to change, gather a few people who believe in it like you do, and start moving forward. It's important to remember that you don't always need a destination. Sometimes, you just have to make forward motion. And you absolutely can.
The enemy aggressor is always pursuing a course of larceny, murder, rapine, and barbarism. We are always moving forward with high mission, a destiny imposed by the deity to regenerate our victims while incidentally capturing their markets, to civilize savage and senile and paranoidal peoples while blundering accidentally into their oil wells or metal mines.
You are saying, are you not, I said to Manuelito, that stories have more room in them than ideas? [...] He laughed. That is correct, Señor. It is as if ideas are made of blocks. Rigid and hard. And stories are made of a gauze that is elastic. You can almost see through it, so what is beyond is tantalizing. You can't quite make it out; and because the imagination is always moving forward, you yourself are constantly stretching. Stories are the way spirit is exercised.