What an amazing picture in the agriculture lectures of the selfless surrender of silica to the cosmos, a transparent openness that allows the spirit to pass through. We can compare this to our experience of our senses, also a silica process, which open selflessly to the world around us, allowing the world spirit to meet the spirit of the individual I. If the senses were not so selfless each sense impression would be a source of pleasure or pain, a self-experience, instead of a transparent opening leading to world-perceiving. The following readings charactise the silica process, which opens up the plant to world-perceiving, to being influenced formatively in selfless openness by the Cosmos.