Atom’s story begins and ends and begins again, indefinitely, in this periodic universe. Atom’s every thought, every dream, every place Atom has ever been or will ever be, every fantastical non-fictional landscape and fictional place too, every time period Atom ever visited from then until now and beyond. But we must start that story somewhere, and that start is our Initial Frame of Reference.
The Initial Frame of Reference for Atom’s story is best as a scientific analog using two short, intertwined strands of yarn. To decipher everything else, well, you’ll need a library. A Universal Library.