Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Analyze the following poem and tell me the underlying theme.

### Input:
We two, that with so many thousand sighs
Did buy each other’s hearts, Must die as bargainers do, in souls.

### Response:
The underlying theme of the poem is the fragility of love and the inevitability of death. Even after two people have shared a strong bond, death will take them away from each other eventually.