That last line states that we should listen to the riddly, then you clearly point out "One Winged Angel," which is the name of the song played during the Safer-Sephiroth battle. Sephiroth is known to be a "one winged angel" while Cloud is the other "one winged angel" (as seen in the more recent drawings bye SquEnix). If that helps in any way, think of that, people (unless, of course, PhoenixAsh says that it's nothing).