Rosa Luxemburg is not only an economic author. In texts written in dramatic days of 1905 revolution she presented a path-breaking account of construction of political subjectivities, and thus revolutionary subject, in the very process of revolutionary struggles. The political dimension of her interventions shed a new light on her overall theoretical oeuvre. There is a constant tension between a determination of revolutionary process by economy and a political construction of revolutionary subject out of plurality of social demands. This article is an attempt to “symptomally read” of her texts, as evidence – I argue – of her theoretical struggle with the political – a radical contingency of the political dimension, which emerged in the given historical circumstances. Therefore, her works from 1905 period could be read as a very early attempt to comprehend the problem, which we are still dealing now in thinking revolutionary and emancipatory politics. However, a “closure”in the certain intellectual horizon prevented Luxemburg from drawing ultimate consequences of this condition. Nevertheless, the political is still an “invisible cause” generating tension and peculiar theoretical oscillation in Luxemburg’s thinking.