Secret history

There is an arsenal,
And it is possible
To dim the lights some more
And hide it from our eyes.
There is a path to blaze,
That curves both right and left.
Looked down and saw the ground,
Looked round and cut the trees.
Looked up and saw the sky,
Launched a mission in disguise.
There is a shining sky,
And it is possible
To run the race on earth,
To patch the wounded ground.
There is a path to blaze.
The right path is what is left.