By the way- strange opening as it's got nothing before it.
sky- I'd say over/above our heads
darkness times- darkest?
to the sea where we *will*
make the flow of the history good,- I'd use 'the course of history'
warmth to the songs- in??
We saw bad things.Wars,massacres, -I'd use a colon after things
saw poors- poor
knowingly running- were knowingly runing/knowingly ran
- For Teachers