Impressions
After food and air, impressions are man's third source of nourishment. Impressions are a real kind of food that can either make us ill or contribute to our well-being. In order to evolve, we must transform our impressions just as we transform the other kinds of food we eat. In order to benefit from the life of an impression, we have to add the energy of life, and this is something that can only exist in the present: consciousness.