A simple and very meaningful poem that tells us about our attitude towards life and things. The hemlock tree is a poisonous tree and crow is an ugly bird,although all these things changes the mood of the poet and he utilised some part the day that he was going to ruin.
In more practical terms,the poet addresess that we can learn a good lesson from a bad evidence also if our attitude towards life is positive.
The 'way' in the first line is left to us to imagine, or as Shakespeare puts in the Henry V, on your 'imaginary forces work.'
Drinking hemlock is the way that Socrates chose to die, so beauty and death are deliberately linked here.
We all have dark moods, and the second stanza speaks of the healing effects of nature.
Frost in this terrific poem follows the three principles of imagism; no superficial word, direct treatment, and metrical metre rather than mere cadence.