When I did Reiki levels one and two back in the early 2000’s, my Reiki master made the comment that as we grow spiritually, the words that we speak change. He had noticed people said less, and what they did say was more meaningful than before. I totally agree and had this experience myself. So I was surprised there was much more to learn when I discovered nonviolent communication.
Marshall B. Rosenberg pioneered this concept in the 1960s and wrote the book Nonviolent Communication: A Language Of Life, which explains many ways in which to express our feelings, needs and perceptions without reactionary behaviour.
Basically, he teaches how to express yourself with honesty and clarity so that others clearly understand you. And he also shares how to listen to others with empathy and a true desire to understand.
This practice is useful among intimate partnerships, friendships, families and work colleagues. It helps to prevent miscommunication and is handy if you are talking to a person who is particularly defensive. If we all communicated from our heart like this it would be a very different world.
I recommend starting with Rosenberg’s YouTube videos to learn the basics and finding his book, and those by others, on nonviolent communication.