You might water the plant.
You might feed the plant.
You might put the plant on the window-sill, so that it can get as much as light as possible.
But you cannot grow the plant.
The laws of nature dictate that the plant will quite happily grow all by itself, so long as the conditions are favourable.
Your job is simply to do the bare minimum that will allow those favourable conditions, and to let nature do the rest.
This doesn’t just apply to plants.
PS: The title of this piece is an old Greek saying.
It means: “What is up to us, what is not up to us.”