context! alot of things, time, religon, ummm how propaganda was big
mind you dont digress...but i believe when u examine poetry and their is obviouslly no related texts then context is crucial
e.g. Wilfred owens poetry is confined a poetic context in which many poets predominatly composed patriotic and heroism poems. This is evident as Rupert Bourke was a poet who was widely accepted and composed pro war poems. their goes my full hektiq mad point
hope it helps conics