To Swing or Not to Swing?

Swing!

How do you like to go up in a swing,
Up in the air so blue?
Oh, I do think it the pleasantest thing
Ever a child can do!
Up in the air and over the wall,
Till I can see so wide,
Rivers and trees and cattle and all
Over the countryside—
Till I look down on the garden green,
Down on the roof so brown—
Up in the air I go flying again,
Up in the air and down! - Robert Louis Stevenson