First of all I love a song that tells a story, and your write here is a wonderful example of that. A sad ending, but that makes it more real.

Lots of great lines, a couple I really like:

"Everything in life we love isn’t promised us forever
It may be gone tomorrow, perhaps returning never"

and:

"Her body lay there in the bed but Heaven’s where she’s at
She had said her last goodbye
She won’t be coming back"

Really good song!