Read a story in the late 60s early 70s about alien lifeforms that were spheres. Two of them would merge into a third “super” sphere. The story was about one that wished he could meet this particular super sphere without realizing it was half of its creation.
Stump the Bookseller
New format, same book stumper solving.
A bit of a longshot as the book is about more than that but your description reminds me of “The Gods Themselves” by Isaac Asimov. Published in 1972,
Aha!! The third part is it exactly . Thanks so much.