Does exploration involve an end-goal? Like the speaker trying to solve the mystery of the wall, these hunters try to corner little bunny rabbits. If we follow this comparison through, the hunters parallel the "something" that doesn’t love a wall, and the bunny rabbits parallel, perhaps, the meaning of the wall. Can it be that we, the readers of this poem, are like the hunters, too? Are we trying to find something or figure something out, as well?