Twinkle Twinkle poem is not so innocent you think. It has an opposite meaning. if the poem reversely read, it dipicts the saturnism.
Here is the real Twinkle Twinkle poem meaning which has covered behind the scene feelings that enter into an child when he/she read the real poem.
Twinkle twinkle little star,
No one wonders where you are
Where's your childhood,
where's your smile
It's been gone for quite a while
Twinkle twinkle little star,
How did it ever get this far?
Twinkle twinkle little sun,
Hope is dead and so is fun
Tears don't help my little friend,
Everything must have an end
Don't hesitate and take the gun
Twinkle twinkle little moon
It doesn't have to end this soon
Peace and better days will come,
Like the moon changes into the sun
Twinkle twinkle little moon
Go to sleep, the sun rises soon