This is a spell.
Having spent much time among the petite bourgeoisie, I have more than once heard repeated, in one form or another, that old Classical maxim Pan Metron Ariston—everything in moderation. Naturally, these words are those of a tyrant. I have no especial disdain for Cleobulus of Lindos, of course, but if I am to live by the words of a tyrant, I prefer to abide by my own motto: everything in contradiction.
Being such a contrarian, I insist Magic can only exist if belief in it is irrational. Demonstrably, factually, there is no such thing as Magic. Your candles and incantations do not exert some force(s) defying all known laws of nature. Morally, ethically, I cannot budge on this matter because to budge is to encourage risky behavior. As a point of comparison, it is important for us to acknowledge that sugar pills are not capable of reducing fevers because to claim otherwise is dangerous to the general population's health. On the other hand, an anxious child who has developed a fever after quite literally worrying themself sick, as I often did as a sprout, may very well receive a sugar pill and be well an hour or two later. In this sense, the pill successfully "treats" the fever. In this sense, Magic is real and everywhere, although it only because there are more logical forces at play.
Still, if there is any value to Pan Metron Ariston, one must conclude that excess logic cannot be ideal for the spirit. This is because logic as we think of it, as we relate to it, is not and cannot be objective because our ability to conceive of logic, reason, order, etc. is restricted by the structures and norms surrounding us, by our own desires, by general human foolishness. When I first arrived on the planet, some silly looking creatures inspected my Body and bestowed upon me several scientifically-backed yet utterly ridiculous diagnoses. Being new, I did not yet possess any evidence against their claims, so I could not refute them. Instead, I cried and screamed and would not be soothed until someone stomped their feet and bellowed out an old showtune, which was strange enough behavior to soothe me. This was the first time I practiced Magic, and it proved to me the value of the art.