There's one mystery I can't solve. Where does the stuff sucked into Miroku's wind tunnel go? An alternate dimension? A direct portal to the netherealm? Nothingness like a black hole? Where does it go?

i think it is sent to the farthest and darkest partes of Miroku's mind.

I'm guessing into the nothingness like a black hole. because i can remember that he said that once a person 또는 thing is in sucked in, they can never get out 또는 to put it in simple words.... instant death hahaha just like a black hole.

that's what i think. ^^

im geussing a never ending blackhole

Personally I think it's just a metaphor for his *blank blank* behavior, Miroku with his naughty hand, just gotta suck everything into it... just like that... 당신 now it just makes 당신 think XD

The wind tunnel IS a black whole. And he said it himself sometime that it's just like a black whole. So there :)

maybe it twists time and space............but how come when he suck poison it gets into his body, does this mean what gets pulled is trapped in his body?

they end up in Texas