A solitary army

And what of it-
So I can't change the world
But I can change my role in it
I can take what's in my hands and mould it
Care for it and make it something worthwhile
Put it back into the world and be proud
So, I can't change someone's life
But I can do something unexpected
Unplanned and nice-
Make them smile, even if only for a while
No, I can't heal the sick
Though I can lend them a hand and show them that I care
No, I can't perform miracles but I can surprise someone with one act of kindness-
What of it
I can't do many things
But I sure can try to do something