The brainwashing divine spell could directly turn a person into a fanatic believer, but the fanatic believer created in this way could not produce a devout belief that matched the brainwashed person's original belief in the god who used the brainwashing divine spell. The degree of belief would be the same after the brainwashing. It was only the attitude towards the god that became a fanatic believer. The quality of the faith would not change, and it would forever be unable to grow.
Therefore, although the effect was excellent, no god used this kind of divine art to develop believers.
However, because after brainwashing, the brainwashed person's attitude towards the caster would directly become a fanatic, so naturally, they would tell him everything they knew. It was very useful for interrogation.
