This phenomenon then took shape as a youkai named the YamabikoAt the core, Youkais areI'll give you an examplebasically phenomenonsGood morning!YahoooohWith time people began to think the youkai was the cause of the phenomenonThe youkai then wasn't thought as the phenomenons itself but as what causes itAnd this is how the youkai known as Yamabiko came to existThe "Yamabiko" is a youkaiThe Yamabiko are the phenomenon of hearing your own voice echoed at you in the moutains
