Which detail most strongly develops the theme of love in the raven

The speaker asks the raven if he will see Lenore again in heaven.

Explanation:

The Raven is a story that creates a contradictory atmosphere by the desire to remember and the desire to forget. It exposes the lover's loneliness, despair, melancholy, sadness shown through his own madness. All these feelings, fueled by the crow's words "never again".

The lover reveals the lack of his beloved, and the words of the raven "never again" culminate in the despair of the lover, whose anguish and sadness create in him a great madness, whose delusions are based on the loss of his beloved and the loneliness he suffers from knowing that he has lost his friends, his hopes and soon his visitor, the raven.