Aliens? I don't know what that is, there's just the robots and the Gods here.

[ Are aliens a type of youkai? He mentally wonders, enough that he sidetracked Yuuji's question for a brief moment. Maybe Yuuji could explain it a little more to Tanjiro in another time. ]

Oh, but I guess in a way we're touching the Gods! They'd feel it if we were to hold hands or hug! One touch for us that's like oh! and then it goes like up, up, up- [ he illustrates as his hand goes higher and higher. ] and that oh is like an uwoooohhhh!! For the Gods.