What exactly constitutes constellation work according to Hellinger?

This question is still waiting to be answered.

How can that be, today, almost three decades after this work became known through Gunthard Weber's book "Zweierlei Glück"?

Perhaps it is because different answers are possible, overly different.

To insist on clarifying that question might result in controversy.
Didn't Bert Hellinger himself say anything about it?

Yes, of course he did.

However, he also said very different things about it, over the years.

We will only get an overall picture of Constellation Work and its development if we look at it together with Bert's personal development during this time.

In this English Edition of his German book "Das goldene Fenster", Thomas Gehrmann writes that Bert Hellinger's death made it possible to take a new look at his thinking and his Systemic Constellation practice.

To the reader, it will open up a new perspective on the subject, not only as an enlightening retrospective, but also as an outlook forward.