Trying to remember an Emacs/Elisp book and a passage about 'the zone/flow state'.Some years ago, I s

Trying to remember an Emacs/Elisp book and a passage about 'the zone/flow state'.Some years ago, I started reading a book about Emacs or Emacs Lisp (I'm not even sure which one), and I remember a passage somewhere near the beginning that really stuck with me: was something along the lines of how lisp/Elisp was designed/structured in a way that helps the programmer stay deeply focused "being in the zone" or a "flow state".I vaguely remember the author talking about how the environment/language reduces interruptions or keeps you mentally "inside" the programming process, allowing you to maintain that state of concentration.But honestly,my memory of it is **very shaky**. I may be mixing together several ideas..Does this ring a bell for anyone? If you recognize what I'm talking about, I'd really appreciate the pointer to the book or passagehttps://redd.it/1w3c2qn@r_emacs