A moment

These are the things she thinks about when no one is looking:

the perfect size dog
the Gobi desert
every person she has ever loved, in consecutive order
the smell of iron
how her Oscar speech would start
why it's called Dr. Pepper
Calvin and Hobbes
her grandfather's face that day

And when others ask, this is what she claims to be thinking about:

the heat
the stock market
that crisis in another country
the circumference of the Earth
endangered whales
that sale at Macy's
the latest cover of the New Yorker

On the rare occasion that these things overlap, that's when she realizes she's hit a moment of truth. Either that, or she's found the perfect size dog.