What was the girls whole purpose in life in annabelle lee?

In Edgar Allan Poe's poem "Annabel Lee," the girl's whole purpose in life seems to be centered around her deep, pure love for the speaker. Their bond transcends the ordinary, as it is portrayed as a love so profound that even death cannot sever it. Annabel Lee embodies innocence and beauty, and her love serves as both the source of joy and the catalyst for the speaker's eternal mourning. Ultimately, her purpose is intertwined with the speaker's devotion, highlighting the theme of love that endures beyond life itself.