This reminds me of this Buddhist story about the cup that is already broken. I think I like this a bit better, as it's not that the cup doesn't matter, but rather enjoying it for what it is while you have it.

A monk had a beautiful, delicate tea cup.

His student asked him about the cup. And much to the student's surprise he replied that the cup is already broken. “What do you mean?” – asked the student.

The monk said – “To me this cup is already broken.”

“I enjoy it. I drink from it. It holds my water admirably – sometimes even reflecting the sun in beautiful patterns. When I tap it, it has a lovely ring to it. But when I put it on the shelf and the winds blows it over or I knock it off the table and it shatters on the ground then I say - of course.

When I understand the glass is already broken, every moment with it is precious.”

Great story. It's a stepping stone to understanding fully that we are all going to die and that life itself is precious.