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