Summertime lyrics

Summertime and the livin' is easy
(Summertime)
Fish are jumpin', the cotton grows high
Your Daddy's rich and your Mammy's good lookin'
Oh, hush, little baby don't you cry
One of these mornins you're gonna wake up singin'
(Summertime)
You're gonna spread your wings and fly to the sky
Until that mornin' ain't nothin' gonna harm you
With your Mammy and your Daddy standin' by
Summertime

Submitted by Guest

What do you think is the meaning of Summertime by Marty Robbins?