What Goes on in That Little Brain??

Sometimes Isis spends the whole livelong day upstairs on a chair next
to a window. She may do that for weeks. 
Lately she has been occasionally opting for The Box under the lamp
with the special energy using 250 bulb. Just today I looked down and
there she was, looking up at me, which means she's going to jump up,
walk across me, and head for The Box. 
What goes on in that little brain? Does she conjure up a mental
picture of The Box and think, "Mmmmmmm. Warm thing. Mmmmm. Better than
chair." ??? 
SOMETHING goes on in her brain, some kind of thought process involving
imagery or kitty words otherwise she wouldn't make these choices. 
All comments welcome, including any from cat psychics or feline
telepaths. 
Thanks.
Mike in Illinois