All good things...

...comes to an end.

It is said, whatever is yours, will stay with you forever, and what is not, will go away.

But the surprising part is, even after you know what is yours, goes away. Its as if the definition is changing. True, you can't hold on to anything, even if it is yours.. But then, it never comes back, or doesn't even stay.
Its as if, nothing is certain. It will be certain, if you take active part in it. Meaning, take interest in it. Show that it does matter to you. Else one fine day, it will go away. Nothing will stay.

You sure have to work to keep what is yours with you. Else..
Nothing stays.