Board Thread:General Discussion/@comment-1294565-20131023221832/@comment-1757720-20131220000936

You are confusing yourself Yano. You speak of Shaka's fight with Ikki, and yet you skip ahead to mythos in the Hades arc, as far we know Shaka may have gained the Eighth sense in the Time skip between Poseidon and Hades thereby making your argument invalid.

The Eighth sense is the seventh sense equivalent for the dead, it is the "seventh sense of spirit" as the ordinary seventh sense is for actual matter. It doesn't allow anyone to physically be reborn, only allows them autonomy in the realm of the dead, without awareness of it the dead Saints are little more than mindless, rabid zombies.