In the end however, it is probably and idealized, anonymous New England boy, representitive of a whole group of innocent young schoolboys who could find the beauty in playing in trees. At the poems end, Frost, who was nowhere near his 1963, when he wrote the poem, writes about how he would like to go to heaven by swinging a birch. It is as an adult that he realizes the full charm and happiness of birch-swinging. The last line of the poem says everything. I hope this helps.
Birches are stiff, but supple trees with many branches.
They are easy to climb, and if you get high enough up, you can rock them back and forth to make them sway. Do this enough times and you can sway them all the way to the ground. A very simple, but enjoyable childrens game that seems to Frost the ultimate example of childhood innocence. Here Frost dedicates the first part of the poem to a comparison between nature and humans. Obviously it is better for a boy to have bent these birches because the trees will rise again.