User blog comment:B214/Season 3 discussion/@comment-24098614-20150419010048

The Lust of Issei in a way has saved his life because it managed to break the curse that his Sacred Gear had with the past users because the line that he uses for his incantation for the new Juggernaut Drive relies on the infinite and the dreams linking him to both Ophis and Great Red ironically.

Ophis questioned this about Issei because he altered the fate of the Sacred Gear by his desires, and I think in a way he broke the curse that the Juggernaut Drive originally have on the past users because his desires are lusty but they are nobler in goals than the other users because deep inside Issei wants the world to be in peace instead of fighting against each other in war, and his desires and dreams have also changed Albion's as well.