Existential pumpkin

Pumpkin pumpkin burning bright
On this your only Halloween night
Did you know quite what would be?
Were you aware what you gave to me?

I brought you home so sweet and firm
Scooped you out and made you burn
Carved your face and  pointy teeth
Then a soul I did bequeath.

Once a gourd born in a patch
Who only dreamed of hay and thatch
Whose only hope was to be canned
And live immortal in this land.

I gave you glory! Face and bone
So you could guard my hearth and home.
Now your sagging eye and cheek
speak of life lived in a week.

Pumpkin pumpkin burning bright
On this your only Halloween night
Did you know quite what would be?
Were you aware what you gave to me?