What is the meaning of 'If I Only Had a Brain' in 'The Wizard of Oz'?

Answer 1

(Scarecrow)
I could wile away the hours
Conferrin' with the flowers
Consultin' with the rain
And my head I'd be scratchin'
While my thoughts were busy hatchin'
If I only had a brain
I'd unravel any riddle
For any individ'le
In trouble or in pain
(Dorothy)
With the thoughts you'd be thinkin'
You could be another Lincoln
If you only had a brain
(Scarecrow)
Oh, I would tell you why
The ocean's near the shore
I could think of things I never thunk before
And then I'd sit and think some more
I would not be just a nuffin'
My head all full of stuffin'
My heart all full of pain
I would dance and be merry
Life would be a ding-a-derry
If I only had a brain

Answer 2

That he is being held back by his brainlessness is the meaning of the song "If I Only Had a Brain" in "The Wizard of Oz."

Specifically, the incident takes place in the beloved 1939 film version and not in the original 1900 book edition of "The Wizard of Oz." The Scarecrow meets Dorothy Gale and her pet dog Toto. Dorothy explains that she is displaced and looking for a way back home to Kansas. The Scarecrow declares that he is not where he wants to be in life because he has straw instead of brains inside his head. He believes that brains will change his life from limited to limitless opportunities.