No one has actually seen it, but a fairy interpreter asked a fairy and they described it as just a cloud of smoke and once in a while you trip over something in the floor.  The fairies purposely leave their trash in the floor because they think it is funny when people trip over them.
Inside the fairies church, Inside Church
cricket
fairy
I'm a fairy that lives in the forest. I like to fly around with my siblings and play games. I try to hide from humans. If they find me, I'll grant their wishes.
So cricket do you know any games we could play? I can't think of one what about you fairy? Well you have no hands, but I know you can jump really high and are quite fast. Hmm. Yea I can! Watch this glitter as I throw it at the praying mantis. That is fairy glitter. Who know what it will do to the praying mantis if you throw it on him. Here put it in the hat instead. Im sorry mantis! I will put it in the hat instead Put the glitter in here and then we will play a game. How about hide and seek? I'm pretty sure crickets are good at hiding. Il go hide! Come find me.