One of my favorite sources of Montessori inspiration shared this great article comparing Montessori and mindfulness education. It is written by Angeline Lillard, author of Montessori: The Science Behind the Genius. I highly recommend it and feel that it deserves to be passed around in the Montessori community. It is one of the most interesting research papers I have read in a while!
https://www.montessori-science.org/Lillard_mindfulness_in_education_montessori_approach.pdf