Group analysis claims, at least as far as I represent it, to research
human development and misdevelopment. This requires the integrations o
f varied individual sciences. Here I mention only medicine, psychology
, theology, anthropology, ethnology, and last not least sociology. Gro
up analysis sees man highly differentiated. Not only arts, but also na
tural sciences such as biology or physics play an important tole when
the figured interrelations of man are to be comprehended in their real
ity. Surely, it is impossible for each practicing group analyst to acq
uire this enormous range of knowledge by himself. Group analysis is on
ly possible in an interdisciplinary manner, as in the case of psychoan
alysis. I did not even describe the sociological background of group a
nalysis sufficiently here; it is already difficult to overlook this fi
eld. We should take every opportunity to further close exchange of the
various sciences, whereby this should not be reduced to merely collec
ting more knowledge, rather it should mean participating in ever new s
urprising developments. Finally, I would like to quote VIKTOR VON WEIZ
SACKER who, in a key sentence of his theory, said: '' Whoever wants to
understand life must participate in life.''(1996)