It is no coincidence that YR is not mentioned in the name register
of Mark Reese's posthumously published biography of Moshe Feldenkrais at the family publisher ReeseKress Somatics Press in 2015.
There are six double-spaced pages of names. A large number of people are named, mentioned and/or have contributed to the content, both actively and in the capacity of various roles and publications.
However, Yochanan Rywerant is absent in all parts of the book, either as a person, or as an author, or as MF's close confidant and assistant.
Around this, I will try to convey a context regarding how I understand this phenomenon. It is remarkable and special.