Augustus
…
First of all, and this gets to the point of the thread, belief in an imaginary being, even if it gives you warm fuzzies and has a placebo effect, is damaging to the intellect and the understanding. Like drugs, you get a false feeling of well-being but you are replacing a fantasy with reality. And *that* is a harm.
Why is it a harm though?
We all construct narratives that aren't objectively true to give meaning to the world around us, it is the defining characteristic of our species. We all replace reality with some form of narrative fantasy (for example the idea that seeking 'objective truth' is a noble endeavour).
Our brains didn't evolve to favour abstract notions of 'truth' over self interest, in fact they evolved countless mechanisms to favour the latter.
Given that we are just apes with superior intelligence and an unusual propensity for violence, why should we search for 'reality' even if it reduces our sense of well-being? That sounds pretty irrational to me. What other animal do we expect to transcend their nature?
We just have a tendency to think other people's should value the same things as we do. Some get the warm fuzzies from viewing themselves as rationalists, others from other sources.
Either way, it's all based on the subjective fictions we tell ourselves.