"I Died for Beauty, but was scarce"

I died for beauty, but was scarce
Adjusted in the tomb,
When one who died for truth was lain
In an adjoining room.

He questioned softly why I failed?
"For beauty," I replied.
"And I for truth - the two are one;
We brethren are," he said.

And so, as kinsmen met a-night,
We talked between the rooms,
Until the moss had reached our lips,
And covered up our names.

Literary Devices:

The speaker in this poem wanted to be beautiful. She eventually dies but before she was settled in her tomb another man shows up. He says that he died for truth and that truth and beaty are the same. They conversed until the moss covered their tombs.
To me, this poem says "Don't spend your whole life trying to impress others because in the end we all end up in our tombs, just for different reasons."