Illusion or branching timeline

Hunched over in front of them, holding his stomach and moaning in agony, was
that huge, pink mound of flesh. Far too fat...but clearly human in appearance, it was
Pokey. No matter how hard they looked, they could no longer see those towering
fleshy walls.

“It appears that he didn't actually transform that body of his, after all. I think
our perception was simply distorted,” said the Poo R.

“I think you're right. And, I think time and space are relative,” the Jeff R.
replied. “After all, this is the place from which all the variables of infinity diverge, or
in other words, the trunk from which all of the branches of the Tree of Possibilities
grow.”

- Mother 2, Chapter 9 pg. 264