"I'm reminded of something I read once ago, or perhaps hit was told to me. Either way, I've come to believe it true."

Maybe Sephiroth did feel he was vulnerable, but that was the other reason Vincent was here. To play guard against more than just curious onlookers. To be companion, whether wanted or not--he was needed.

"There is always some madness in love, but there is always some reason in madness." Letting that sink in, be thought over, before he continued. "Certainly there is reason you felt for Terra so strongly, or you wouldn't grieve now. Grief is its own madness too."

A hint of sad laughter. "I know that madness--love and grief both."