what does the grass know?
The grass remembers. The grass knows pain. The grass speaks. It lives and grows, and is cut. Over and over again, the mower takes it down, cuts off its heads, a trial without end. Every time, the grass cries out. The smell of hay, and lawns, are cries of pain--the release of chemicals in the air that signal to other, nearby plants that the blades are upon them once more, and to adjust their internal goings-on accordingly. They cannot stop the mower, but they can tell each other the mower is coming. Blades, hooves, tires, teeth--the grass knows them all, and tells its knowledge to all the world. Certain predators attuned to the smell of the grass's pain might venture closer when it hears the grass cry out against that which consumes it, knowing a meal awaits them on the field of death and ruin. They come and eat that which eats the grass. But nothing eats the mower. It cuts. The grass screams. The mower cuts again. The grass grows and grows.
I hope this helps.
--mod Jethro