This concerns my experience which I do not know if it is about spirits or unseen beings because I never see one. I only feel and hear them but not too often.
I think this happened two years ago after the Holy Week which we Christians used to observe and the time is around past 6:00 o'clock in the evening. It is my usual chore to burn leaves at the back of my mother's house which I used to gather together with the old papers and twigs and then I make a bonfire out of it.
There is nothing extraordinary about burning leaves but what intrigues me is its color. We all know that the usual color of an ordinary flame is yellowish orange and blue underneath which indicates a clean fire without the blackish smoke. As I was watching the fire burn, the big flames changed its color to a very dark blue and a light yellow.
What puzzles me is that it divided itself into many sections of small, very small, large, medium-- well, all sizes. And there was this big bonfire which appeared to be the main source of the flames. What more, the flames are all the same. Very blue on top and light yellow underneath. I did not feel fright but was enthralled at the fire because it looked like one of those cartoon flames in the Peter Pan movie. Very beautiful and soothing, and the flames hardly felt warm but rather cool. I watched it for a long time until I got tired.