Comment by jibal

Internal monologue is a like a war correspondent's report of the daily battle. The journalist didn't plan or fight the battle, they just provided an after-the-fact description. Likewise the brain's thinking--a highly parallelized process involving billions of neurons--is not done with words.

Play a little game of "what word will I think of next?" ... just let it happen. Those word choices are fed to the monologue, they aren't a product of it.