Which poem is sometimes terrified of my heart from?

The phrase "sometimes terrified of my heart" is not a direct quote from any specific poem. It's likely a phrase that resonates with the themes of many poems, but there is no one poem that definitively uses those exact words.

To help me figure out which poem you're thinking of, could you tell me:

* What is the general theme or subject of the poem? Is it about love, fear, loss, or something else?

* What are some other key words or phrases from the poem?

* Do you remember the author or title of the poem?

With more information, I can try to pinpoint the poem you're looking for.