"I've done it!!
I'm drifting into a world of limitless dimensions!!
It's the Crossroads of Infinity--
The junction to everywhere!"
Using experimental collage techniques, Kirby was trying to visually convey the inconceivable experience of multi-dimensional awareness.
I was never really a fan of the FF comics as a kid, but it was where Jack Kirby introduced my favorite character, the Silver Surfer.
For some very interesting articles about Jack Kirby's work & special brand of pop-culture mysticism, check out the links on The Secret Sun blog.