User blog comment:Xilinoc/Ch. 593 - Marching Out the ZOMBIES 4/@comment-24572618-20140820220922/@comment-5693502-20140821001943

I think the drug only affects Toshiro's mind, like most (if not all) drugs. I'm guessing that the same thing that happens to a person under Izanami happened to Toshiro before he collapsed. Super hallucinogenic drugs FTW.

Other than that I think Mohrpheus has hit the nail on the head. Well done Kubo for (heavily) 'referencing' other works in your series; Mayuri rocked it better anyway XD