Yet another r=u thread???

Somewhere (on here I think), I read that Ultimecia's lines in the French version translate to something along the lines of "Suffer from your own imaginations" when summoning Griever. Combined with the Scan readout of "In Squall's mind, the most powerful GF", I find it far more likely that it was a physical manifestation of Squall's fear/imagination, or otherwise somehow created by her by 'reading' his mind. Something like Boggarts in Harry Potter. Rather than the usual theory of it being a GF contained in Squall's ring.