The irony of the poem is that the title is something different than what is meant by the poem. It infers that the poem will be saddening, but the message is rather positive and uplifting. However, I also thought that the speaker can be giving an exaggeratedly positive spin on death, and the afterlife. That the poem is meant to be read with sarcasm. And if this was case the irony and mood of the poem would be completely different. The mood would be littered with contempt and the irony of the situation would be that the title is indicative of how the speaker feels, but the positive message would be interpreted as the naive outlook of the foolish. I thoroughly enjoy how two people can read this poem and come back with two different opinions on what the message is.