Belief is a personal choice. There are as many different beliefs as there are people in the world. it can be angels, ghosts, aliens, or even God, it's all a personal decision, and it's perfectly fine. Things stop being fine when other people try to impose their beliefs as the only truth. In my opinion, that kind of fanaticism can be responsible for the start of a war, not the belief itself, but the believers that take it way too seriously and do not accept anything other than what they believe in.
My brother says I have a court of angels that care for me, not one, but a lot of them, he says that cause I've been in situations where I could've got hurt, like a car accident, and a very toxic relationship that could have ended badly, but, he says so completely convinced of it, he believes that, me, on the other hand, I do believe something is guiding and protecting me, but I'm not sure what it is, what I am sure is that I'm thankful to it for keeping me safe. No matter what the belief is, what's important is to not try to impose them.