One has, further, to employ expressions which stand
for what is intentional in such acts, for the object to which they are
directed, since it is, in fact, impossible to describe referential acts
without using expressions which recur to the things to which such acts
refer. One then readily forgets that such subsidiarily described
objectivity, which is necessarily introduced into almost all
phenomenological description, has undergone a change of sense, in virtue
of which it now belongs to the sphere of phenomenology.
Edmund Husserl, Logical Investigations vol. 1, p. 171
eidetisch 