Green Eggs And Ham....Dr Seuss

Sam !
If you let me be,
I will try them.
You will see.
Say !
I like green eggs and Ham !
I Do! I like them, Sam -I am !
And I would eat them in a boat.
And I would eat them with a goat...
And I will eat them in the rain.
And in the dark. And on the train.
And in a car. And in a tree.
They are so good , so good you see!
So I will eat them in a box.
And I will eat them with a fox.
And I will eat them in a house.
And I will eat them with a mouse.
And I will eat them here and there.
Say ! I will eat them everywhere!
I do so like green eggs and Ham!
Thank you !
Thank You ,
Sam- I- am!
I guess there is a very significant message hidden in this Beginners Book...