Milarepa: Unless one realizes the Truth of non-decay, He has to suffer old-age and not be gay.

Milarepa: Suffering of Old-Age

When one’s body has been brought
To be frail and all worn out,
It dislikes old-age,
There is of this no doubt.
One’s straight body becomes bent,
Steps are not firm and patent.
Black hairs turn white, Arms have no might.
One’s eyes grow dim, Ears are not keen.
The head shakes, Pale are cheeks.
Blood becomes dry, One feels to die.
One’s nose will sink in,
Teeth can’t chew anything.
Losing control of tongue,
Sweet sugar isn’t fun.
One gathers foods and wine,
But one can’t keep them fine.
Trying not to suffer anymore,
One only gets suffering in store.
When one is told the Truth,
But one’s faith is not growth,
Though one has some kinsmen,
They all his foes become.
Though he hears some teaching,
But nothing is changing,
Unless one realizes the Truth of non-decay,
He has to suffer old-age and not be gay.
http://www.quietmountain.org/links/teachings/yogi_chen/87.htm