this quote is from before the "Theses on Feuerbach" or THE GERMAN IDEOLOGY. It's before Marx broke with the "Young Hegelians" and clarified his materialism. It thus doesn't seem relevant.
James Devine wrote:
> There are a lot of religious folks who think that "if you change your
> mind, you'll change the world." K was closer to that perspective than
> M.
>
> Our programme must be: the reform of consciousness not through dogmas
> but by analyzing mystical consciousness obscure to itself, whether it
> appear in religious or political form. It will then become plain that
> the world has long since dreamed of something of which it needs only
> to become conscious for it to possess it in reality. It will then
> become plain that our task is not to draw a sharp mental line between
> past and future, but to complete the thought of the past. Lastly, it
> will becomes plain that mankind will not be doing any new work, but
> will consciously bring about the completion of its old work.
> <http://marxists.anu.edu.au/archive/marx/works/1843/letters/43_09.htm>
Ted