Summarize the following text. 

Blow, blow, thou winter wind ,

Thou art not so unkind

As man's Ingratitude;

Thy tooth is not so keen, 

Because thou art not seen,

Although thy breath be rude.

Heigh-ho! sing heigh-ho! unto the green holly;

Most friendship is felgning, most loving mere folly

Then heigh-ho, the holly!

This life is most Jolly

Freeze, freeze, thou bitter sky, That dost not bite so nigh

As benefits forgot;

Though thou the waters warp.

Thy sting is not so sharp As friend remembered not.

Heigh-hol sing helgh-ho! unto the green holly