I wonder...

I saw an ant, scurrying about.
I wonder what it's thinking of..
"A giant human is staring at me!"
"Gotta find something..."
"-blank-"

I saw a bird flying in the sky.
I wonder what it's thinking of..
"Fly, fly, fly..."
"Where's my nest?"
"-blank-"

I saw humans today.
I wonder what they're thinking of..
"Where should I go now?"
"What should I eat?"
"-blank-"

I saw myself in the mirror.
I wonder what I'm thinking of..
"Who am I?"
"What am I?"
"What's my worth?"