healing the world

I have a friend who is Jewish.
I asked him once about the laws he chooses to follow -

He said some of them, he really believes are the best way to live.
For some, it's hard to tell what benefit they may have. But, as tiny
humans, we don't know what is really going on in the world, and what
part obedience of the laws plays in the grand scheme.

There is a phrase for it - I forget the phrase - but the meaning is of
Healing the World.
The world is broken, but by the actions we choose and the laws we
follow, we are healing it without really knowing the exact ways that
this is done.

I'm not following Jewish laws.
But, I was thinking about this because today, I feel like I can look
back on what I feel is a small part of my role in healing the world.