Frost's poetry is famously ambiguous. Even his most famous poem, which people usually assume is about the positive attributes of a life of nonconformity, can be read from the opposite perspective:

> Two roads diverged in a wood, and I—

> I took the one less traveled by,

> And that has made all the difference

Note he doesn't state whether the difference was positive or negative.

We put ourselves into the poetry, and much of his work can indeed be quite dark when read from a certain place.