Analysis and summary of Feste's song in Twelfth Night?

When that I was and a little tiny boy, With hey, ho, the wind and the rain, A foolish thing was but a toy, For the rain it raineth every day. But when I came to man's estate, With hey, ho, the wind and the rain, 'Gainst knaves and thieves men shut their gate, For the rain, it raineth every day. But... show more When that I was and a little tiny boy,
With hey, ho, the wind and the rain,
A foolish thing was but a toy,
For the rain it raineth every day.
But when I came to man's estate,
With hey, ho, the wind and the rain,
'Gainst knaves and thieves men shut their gate,
For the rain, it raineth every day.
But when I came, alas! to wive,
With hey, ho, the wind and the rain,
By swaggering could I never thrive,
For the rain, it raineth every day.
But when I came unto my beds,
With hey, ho, the wind and the rain,
With toss-pots still had drunken heads,
For the rain, it raineth every day.
A great while ago the world begun,
With hey, ho, the wind and the rain.
But that's all one, our play is done,
And we'll strive to please you every day.


Just any analysis of it and a summary on what it is about? thank you xx :)
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