In the last two lines of the poem, the family does nothing after the boy's death. They do not grieve and simply “go about their business.” A bit discreet, but easy to understand why. To readers, this seems incredulous as we imagine the mother and sister bursting into violent tears and begging the boy to come back to life. We also imagine the father reproaching himself for letting his son handle such a dangerous tool at this age. But if we think about it, all these things make no sense. There was nothing the family could have done to save their boy. Therefore, Frost is clear that the family is moving quickly