Physicist, studied in Freiburg and Berlin, and was a guest scientist at the University of Washington in Seattle. In 2015, PhD on a phenomenological approach to complementary spectra. From 2007 a member of the scientific staff of the Research Institute at the Goetheanum.

Goethean Science is an empirical science: phenomena in the external world are observed, conditions are changed and studied. On the other hand Goethe emphasized that no direct conclusions are possible from all these observations. Instead it seems obvious that he was looking for an extension of the empirical method as a sort of “higher experience in the experience”.

Mistletoe displays a wide spectrum of phenomena. Learning to understand these as an expression of something essential requires dedicated inner and outer dedicated work with the plant. Some essential steps on this path of mistletoe research will be discussed in this contribution.

Associate Researcher at Bristol University and the Ruskin Mill Field Centre. Studies the evolution of secondarily aquatic tetrapod animals and runs lectures and courses in Goethean science. Also teaches in international training programmes for Waldorf Upper School science teachers.

Do universal signs and gestures exist in nature in their own right? Do they hold intrinsic meaning and is it possible for the human mind to grasp that meaning? In this lecture I will explore these questions from the perspective of animal development and evolution, using extinct and extant vertebrates as examples.

Through symbolizing pure perception, the consciousness of the scientist dives into the world of imagination and then returns into the world of the senses. In this rhythmic process, the living spirit of nature comes closer to the world of the senses. This scientific method is presented with examples of plants fertilized with metals.  

Born in 1953 in the Netherlands. Studied physics in Utrecht. Physics teacher at the Waldorf School of Haarlem. Research on the theme of color for thirty years. Coordinator of the Science Section in the Netherlands since 1998.

Living with the gestures of different color experiments led me to threshold experiences. These brought me to the development of a range of color meditations. The rainbow meditation is an example of such a meditation.

Through comparison of outer and inner experiences with light and darkness we can explore how, on the path to the threshold, the relation to the sense world , will at first, become obscured and then renewed with a different quality.

Born in 1956. PhD in physics, followed by research and publications on foundations of Anthroposophy, history of physics, the human I and warmth, the human sense organism, reincarnation and other themes. Waldorf secondary school teacher for six years and fifteen years in teacher training in Mannheim. Independent researcher since 2017. Current main interest: Franz Brentano and Rudolf Steiner.

Today there are two states of consciousness in which we experience boundaries of cognition. One is dreaming, which depends on the body organization. Images which are experienced there come from memories of the sensory world. The forces that shape the dream, on the other hand, are similar to those that come to the etheric body through the cosmic supersensual images that the astral body receives during sleep. These forces regenerate the physical body during sleep and thus contribute to the processing of the experiences of the previous day. Thus, while dreaming, the human being lives supported by the body at the border of sensory and imaginative experience.
The other state of consciousness is attained when one seeks out the shaping forces in such a way that one learns to live “thinking with them” in the imagination that is developed at the sensory world. Here one comes to the same border, independent of body-bound causes. Now, the experience is deliberately carried by the human I and can thus be expanded into an instrument of knowledge. In the lecture these statements will be explored supported with examples.