i also believe the poem has domestic influences, such as the concentrated influence of the word house, and then various conotations the reader can pick up on can also help this idea. I think that overall, the poem demonstrates two central theme depending on how you analyse it.
1. That humans are insignificant to the power of nature. So no matter how much we as people change and alter the world around us, we are never in complete control.
2. people have power when united together (such as them being in the house together(although they are still useless against the weather) it is vitally important for society on the whole.
anyway, thats just a few ideas to think about, see if you can spot them x