Talk:Hinokami Kagura/@comment-39173597-20190702232241/@comment-30468100-20190817021600

My theory is that DotFG is the true original ritual dance created before Demons were a thing, which Sumiyoshi learnt and from that created the BotS. Basically, DotFG is exactly what it says it is, a DANCE. It was never a fighting style to kill Demons but a ritual, of which Sumiyoshi used it's core teachings and added his experience and skills to create BotS. BotS was created FROM DotFG.

As Sumiyoshi learnt more and perfected his BotS, the later Demon Slayers took his style and broke it down, taking fundamental lessons of combat from BotS to create their new styles, which is why it's stated Breath derives from it. Over time, the new Breaths each accumulated new skills and adaptations as each user added their own experience and abilities, thus creating completely new paths that branched out from BotS.

DotFG though is the original core that has been maintained in it's purest aspects as a ritual dance. As Tanjiro has trained to use the Breath of Water, and BotW basically contains strands dervived from BotS/DotFG, he has subconsciously taken the lessons of BoW and basically plugged it into the Ritual Dance. As such, he's basically started a new BotS, using the knowledge of sword wielding from Uroboshi to once more apply DotFG in combat.