This is indeed the right way to approach this topic. Arguably religion (and more broadly, mysticism and shamanism) is the millenia-old art of cultivating positive voices inside one's head. A proto-science of mind, or the engineering practice of creating "psychotechnologies" that run on your carbon wetware.

Unfortunately, it just needs a rebranding for the 21st century, since the aesthetic of angels and demons is so hopelessly antiquated and doesn't really have the same cachet it used to.

Which ultimately it's what religion has always been: a way to explain the unexplainable and steer people behavior while doing it.