I've got a question about this part - それらの音が、世界の中心にあることを思い知らされ. I cannot understand why it's used passive form verb(思い知らされる) and それらの音が. If I'm understanding correctly, the ones who "make you realize something are those sounds" So, is it a mistake here, some sort of "author's stylistic" or I'm just misunderstanding something?
いつもは車の音や街の音にかき消されてしまう、世界の囁き。それらの音が、世界の中心にあることを思い知らされ、だから、人の世界の不在を強く実感してしまうのだ
"The world's whisper, which is always erased by the sounds of cars and streets. Those sounds makes you realize, that you are in the center of the world, that is why..."