 The University of Virginia Student Activities Fund (SAF) constituted a limited public forum, albeit "more in a metaphysical sense than in a spatial or geographic sense," yet "By the very terms of the SAF prohibition, the University does not exclude religion as a subject matter, but selects for disfavored treatment those student journalistic efforts with religious editorial viewpoints.Religion may be a vast area of inquiry, but it also provides, as it did here, a specific premise, a perspective, a standpoint from which a variety of subjects may be discussed and considered.The prohibited perspective, not the general subject matter, resulted in the refusal to make third-party payments, for the subjects discussed were otherwise within the approved category of publications."