Thanks to Lissa Bryan's and Camilla's suggestions, I'm pleased to recommend an article by Donya Linne and a book by Jill Elizabeth Nelson.
In her book Rivet Your Readers with Deep Point of View, Nelson -- award-winning author and writing teacher -- helps fellow writers to anchor their readers inside the point of view character(s) of their novels, and she teaches the transformation from ordinary narrative to deep narrative.
In her article
Donya Linne comments Nelson's book and deals with these topics:
- What is Deep POV?
- Phrases and Words that Scream "Shallow POV" as Opposed To Deep
- The Five Senses...If You Tell Us the Senses, You're Not Deep Enough
- Avoid Naming Feelings and Emotions If You Want to Go Deep
- Prepositional Tells - Ditch 'em
I've found those suggestions very effective, and I hope Donya Linne's article and Jill Elizabeth Nelson's book will help you as well.
As usual, your comments are welcome!