The word ‘design’ in the last line sums up the poem.  It describes a pattern of how the world works. The question at the end of the poem asks whether there is a design or not.  There is a purpose of how the world is set up and this gives people the comfort of knowing there is order.  Without order the world would be in chaos.          

     Everything has some kind of pattern, even the smallest thing, such as a spider trapping a moth on a flower.  Many facts appear as if expressly designed in view of one another.  No matter what nature may have created or continues to create, the means must have been sufficient.  Frost wants the reader to think about how the world is made up and if there really is a set pattern.  By looking at such a small part of the world we see that everything does have a purpose.  Every event that occurs in the universe happens for a reason and this is what Frost is trying to point out in this last statement of the poem.

            The last two lines of this poem are also a good example of a sonnet.  It is a fourteen-line poem with a regular rhyme scheme, plus the last two lines turn the mood of the poem.  These last two lines are the most important because they make the reader think about what message Frost is trying to make through this poem.