Thanks for the Link to the book, I put it on my list!
I have read "Relaxation Response" a few years back (https://www.amazon.com/Relaxation-Response-Herbert-Benson/dp...) and shortly after have practiced this method every day for 6 weeks with my partner. We did this by listening to the meditation "Bring Mindfulness to Your Day"[0] early in the morning and i recall this being a beautiful period of serenity for both of us. Highly recommend the meditation - her voice alone is incredibly calming, plus: it gave a good overview of different meditation techniques.
Good intuition, and now we have hard scientific data to support it:
https://www.amazon.com/Altered-Traits-Science-Reveals-Medita...
Please note I am using a somewhat more general meaning of the word "happiness" than usually understood.
Also, in your statement I would replace "same manner" with "similar manner, opposite direction" or something like that.