Having a one track mind refers to the instance that there is currently only one specific thing on your mind (which you may or may not make clear to your environment by returning again and again to said thing in conversations).
Guy: Dude, Barack Obama's speech was wicked last night!
The Other Guy: Uhmm, yeah, it was all right.
Guy: Oh, and dude! Did you hear about the puppy he wants to get? OMG, it's so cool.
one ttack mind is hearing a statement and beleving that it only has one meaning,hearing a song and thinking that each bar,only has one meaning.The secrete too making sure you are not a one track mind person is getting books on writing songs,poems,ect. meaning understanding what meataphors are synonyms,homonymns,puns ect.
I think most humans in the world belevie in metaphors when wrighting music stronger than other ethics...
one track mind