fences (EAH)

I read this poem as a metaphor. In many religious traditions there are many "fences" or extra rules to make sure people never do anything that is actually forbidden. men and women should not even talk to each other or sit next to each other on the bus or be friends, lest they come to be attracted and have an affair... yes, the fences make us careful but they also make us miss out on a lot of human life, the learning and excitement we can feel from having another friend... I think the writer is poking fun at the serious neighbor who lives by all the rules around the rules- spring is making Frost mischievous enough to challenge the set laws and suggest maybe we can trust humans enough to make the right choices even if the rules are a bit more relaxed and only the fences that really need to be there, to keep out the cows ,the major and most likely misbehaviors, are left standing and constantly strengthened.