Can Spirituality & Meditation not be investigated scientifically in a way which is satisfying?

After 4 000 posts of Peter Gamma from www.petergamma.org is asking this questions. This picture shows French philospher Jean-François Revel: Does Francous Revel not remind of really serious bankers from Zurich who don’t smile when we look at this picture? Or similar to lawyers from the Bahnhofstrasse not in in Zurich, but in Wil (SG): …