I chose to google supernatural poems and came across a website named poetry-archive.com. This website is good to use because its is an archive of poems which means its has many poems about different topics. I chose a poem by Thomas Bailey Aldrich titled "Identity". The poem is about two figures who meet in the after-life but are unaware of where they are exactly. One figure ask the other who they are but he doesn't know; all he knows is that he died yesterday.

SOMEWHERE—in desolate wind-swept space— In Twilight-land—in No-man's land— Two hurrying Shapes met face to face, And bade each other stand. "And who are you?" cried one a-gape, Shuddering in the gloaming light. "I know not," said the second Shape, "I only died last night!"
http://www.poetry-archive.com/a/identity.htm