Potter is mocked by a faculty member for the idea that there is evil in the world from which even children need to learn to defend themselves by the actual practice of doing so rather than familiarity with theory.

Although terrifying, the evil ghost will probably pose no real danger to you or your family. On the other hand, if you have a demonic infestation, your entire household is in very real danger. A demonic entity will not usually confront you or induce you to flee the home. Because, unlike the evil ghost, the demon does not actually want you to leave. On the contrary, it wants you to stick around so it can destroy your life and sully your soul from the inside.

Prayer is a great opportunity to receive grace from God.

God__ grace is our greatest need.

To stand against the enemy is to rest in what Jesus has already done.

Grace is the gateway to heaven.