Hi,
The following line from the excerpt shows personification:
<span>"Can't see it," remarked Rainsford, trying to peer through the dank tropical night that was palpable as it pressed its thick warm blackness in upon the yacht.
It is personifying the night.
~Elisabeth</span>
I think that the use of rain is meant to symolize purification of all evil things.
Answer:
This would not be considered an effective analogy because the two topics being discussed do not have any similarities.