Thanks @evadiva for sharing this nice piece. As per spiritual strongholds, 1 John 4:4 provides us with the right mindset, with which we can live triumphantly, as believers... It says:

You, dear children, are from God and have overcome them, because the one who is in you is greater than the one who is in the world.

Thus, we all must operate from this point of view over every handiwork of the enemy.

Kind regards.