Very much so, except one crucial point. Whatever lay beyond the barriers do not kill. The fate they deal in is far worse. They rob their victims of emotion and will.

[There's a slight hint of amusement in his tone, but he quickly moves on.]

To uphold the barriers, you will need a constant and prevalent source of fear. As you no doubt noticed on your way here, Castlevania is home to many terrors that humans may call myth, but they alone will not garner the level of fear needed to keep the barriers strong. Which is why I have a proposal. What we need is a war.