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
praying mantis
I am usually here. I'm never there. I sit and think very, very slowly. Then I move very slowly there. I eat leaves and think extensively on how not to move.
this is the fairies church where are the fairies