I understood

I did learn to separate summer from winter.

that once the snow melts it does not form again
until next winter and once
the summer green arrives the heat follows
to burn off the coldness of winter

that roots of a tree do not change but thrive
upon the arrogance of summer and they shape
their shattering leaves shaking in the winter

the course of earth is
nowhere to be found
but it repeats
again and again.