discussing eduard von hartmann's "philosophy of the unconscious" (1869), brentano comments that hartmann "uses the term 'consciousness' to refer to something different from what we do. he defines consciousness as 'the emancipation of the idea from the will...and the opposition of the will to this emancipation,' and as 'the bewilderment of the will over the "existence" of the idea, which existence the will does not want but which, nevertheless, is sensibly present.' brentano suggests that hartmann's definition of consciousness perhaps refers to "something purely imaginary", and certainly does not agree with brentano's definition.