If nobody believed in superstition it would be unable to hurt anyone


The law of averages
Religion manipulates believers as follows.
There are 1000 prayers which can get a good or bad response.
You are 50% likely to get good or bad.
You get good 999 times.
You have one more time left.
People will assume that you will get good.
That is actually wrong. It is still 50% likely that you will get good and 50% likely that you will get bad.
Human nature is terrible at predicting outcomes and especially when they want to believe the outcomes will be good.
That lack of skill we all have is extremely useful to religionists. They depend on it to get you to think that prayer works and that healers can cure you by using God's power. It works to keep you dangling on living on false hope in religion and in what it says.