I'm not entirely sure as I haven't read it in detail. But generally, it might be about witches and some sort of conflict or adventure related to them. Maybe it involves a story where the witches are being persecuted and there are characters who either want to burn them or save them.
I don't know specifically as I haven't read the novel. But it could have witches as main characters, perhaps a powerful witch who is the target of the 'burn the witch' sentiment. There might also be a hero or anti - hero character who is involved in the situation regarding the witches.
Well, 'burn baby burn' gives the impression of something exciting or chaotic. In the context of a TF2 fanfic, it could be about a situation where the characters are in a really tough fight. Maybe there's a lot of destruction and high - energy action. For example, it could be about a battle between the two teams where the environment is on fire and the characters are fighting tooth and nail to win. It could also be about a character's personal journey within the game's world that has this 'burning' or intense aspect to it, like a character facing a really difficult challenge that they have to overcome with a lot of passion and determination.
I'm not sure if it's popular. There are so many TF2 fanfics out there, and without more information or some kind of popularity metric like views or reviews on a particular fanfic site, it's hard to say.
The correct way to burn incense was to light the incense with the head facing down with the left hand holding the incense stick. One could recite the incense incantation: " Often burn the incense in the heart, get great peace." If the incense accidentally ignited the open fire, it was forbidden to blow it out with the mouth. Just fan it with your right hand or shake it to extinguish the open fire. Then, he used his left thumb and index finger to pinch the upper end of the incense stick, and his right thumb and index finger to pinch the lower end of the incense stick. Then, he placed the incense stick in front of his chest and bowed three times.