When discussing Wordsworth theory of poetry, what are the major matters that should be mentioned?

This is fairly wide in terms of scope. There can be many
different approaches taken. In my mind, I am not sure one gets very far in the discussion of
Wordsworthian poetry without referencing the social and political movement of Romanticism with
which Wordsworth so passionately identified. I think that the full effect and impact of
Wordsworth's poetry is seen when discussing it in the light of Romanticism. This is because
Wordsworth sought to make a social statement from personal experiences. When Wordsworth sees a
field of flowers, or hears the song of a woman in the field, or discusses a love of nature, he is
doing so on a personally explicative level. However, the extolling of the subjective and primacy
he places on this level of experience has social implications in so far as Romanticism was a
statement against the conformist Neoclassical society that preceded it. A stronger appreciation
of Wordsworth's poetry emerges when one recognizes that his lauding of Romanticism is done to
construct a social and artistic setting of what should be as opposed to what is. It is in this
realm that Wordsworth's writing acquires a social or political dimension and not merely just an
artistic one.