These lectures trace the activities of warmth, light, and rhythm in the life forms of the natural world. The intent is to form a picture of “the etheric” which is both an important and difficult concept. Moving from an historical look at the idea of the ethers into some of the contributing streams in Rudolf Steiner’s thinking such as the fourth dimension, the nature of warmth and the infinitely distant, and then finally to the current scientific research that supports the idea of the etheric realm.

Topics include: the polarities of chaos and rhythm in the ancient world; inner surfaces of water; minimal surfaces in biology and in potentization; vortex movements in air and water; properties of air and warmth; the presence of infinity in plant growth; and the micro-crystalline geometries of mineral interfaces in nature.

• Lecture 1
  agricultural imagination, agricultural individuality, training imagination observe/represent/silence/record, macro and micro forces as polarities, framework substances, exercises for imagination
• Lecture 2
  Infinitely distant plane, biological surfaces, the action of fields, gradients, nodes, intervals, wave patterns in nature
• Lecture 3
  Morphing images, the elemental world, will in images, pictorial consciousness, crystal forms, the action of minimal surfaces in nature
• Lecture 4
  Ethers and elements, polarities of potential and manifestation, humus / clay relationships, the living mineral / plant, chlorophyll structures, alchemy of ethers falling into elements
• Lecture 5
  Cow horns and silica, forms as substance and process, form motif language, ectoderm and endoderm in organisms, forces of attraction and repulsion, electrical devices as analogs to biological structures, capacitance devices in nature, BD preparations 500 and 501