Answer: They speak of mourning lost love.
Explanation:
These two excerpts are from the two poems of Edgar Allan Poe - first one being "Annabel Lee", and the second one "the Raven".
A theme that is explored in both of the poems is the theme of lost love. The speaker from Annabel Lee describes a painful memory of his long-lost love. Annabel Lee and the speaker both lived "in a kingdom by the sea" where they fell in love. They were happy together, until " the wind came out of the cloud by night, chilling and killing my Annabel Lee." In this particular excerpt, the speaker describes the strength of their love. Similarly, in the Raven, the speaker also deals with a loss - of his "lost Lenore". Throughout the poem, the speaker wants to mourn all by himself, but is interrupted by a strange guest - the raven that can speak.