In psychiatric terms, a belief can be considered delusional if it is held with strong conviction despite superior evidence to the contrary, and if it significantly impairs a person's ability to function. However, it's essential to differentiate between cultural, religious, or personal beliefs and psychiatric symptoms.
Belief in magic, supernatural beings, or phenomena can often be a part of religious, cultural, or personal beliefs. It's widespread across many cultures and religions globally, and in these contexts, it isn't generally considered a psychiatric symptom or a delusion.
However, if a person's belief in magic becomes so extreme that it significantly interferes with their daily functioning, if the belief is held despite clear contrary evidence, or if it's not part of the individual's cultural or religious norms, then it could potentially be considered a symptom of a delusional disorder.
For example, if someone believes they can control supernatural beings to such an extent that they neglect their job, personal relationships, or self-care, and if they continue to hold this belief despite clear evidence to the contrary, this could potentially be seen as delusional. However, it's essential to consider the context, and diagnosis should be made by a qualified mental health professional.
In summary, not all beliefs in magic or the supernatural are considered delusions in psychiatric terms. The context, cultural norms, and impact on daily life are all important factors to consider.