Untitled [therapy]

"Certainly, certainly... I always take this with me when I travel. At home I have a much bigger one."
"What is it?"
"My therapy... I'm still perfecting it..."
"What's it do?"
"Do?"
"Yeah, what's it for?"
"Well, nothing, nothing, I mean, that's the beauty of it. Every machine in the world does something, but not mine."