We found 3 Reddit comments about Molecules Of Emotion: The Science Behind Mind-Body Medicine. Here are the top ones, ranked by their Reddit score.
I was particularly thinking of Godel, Escher, Bach. It seems he took the elegant concept of loops and stretched them into too many pages. The "subject" we are discussing is pretty broad, so I am not sure which direction you would like to go, but you might enjoy Candace Pert's Molecules of Emotion:
Yes, as a matter of fact. I've read Molecules of Emotion twice. It's fascinating stuff.
There is a biochemical basis for personality and emotion.