Literary devices in this poem?

Ernest Dowson

"A Last Word"

Let us go hence: the night is now at hand;

The day is overworn, the birds all flown;

And we have reaped the crops the gods have sown;

Despair and death; deep darkness o'er the land,

Broods like an owl: we cannot understand

Laughter or tears, for we have only known

Surpassing vanity: vain things alone

Have driven our perverse and aimless band.

Let us go hence, somewhither strange and cold,

To Hollow Lands where just men and unjust

Find end of labour, where's rest for the old,

Freedom to all from love and fear and lust.

Twine our torn hands! O pray the earth enfold

Our life-sick hearts and turn them into dust.