The Eternal World Picture, vol. 3
Explanation of symbol no. 31
31.2  The cone figure on the left of the symbol symbolises the universe, which extends from the infinite microcosmos to the infinite macrocosmos. Everything that exists is within this universe. The large step formation on the right of the symbol symbolises the ladder of evolution on whose steps all existing living beings are situated. Every step symbolises a step in evolution. On one of these steps we see a triangle. This symbolises a living being. From this living being a shining ray emanates. This symbolises the sensory abilities of the being in question, which in turn means its ability to manifest and experience life. What the being experiences and creates depends therefore on the evolutionary step on which it is situated. It can experience only that part of the universe that is accessible for its senses on the mentioned step. The more highly developed the being is, the more perfectly it can sense and perceive the universe.
Symbol by Martinus
Symbol no. 31
The Sensory Faculty of the Living Being and the Steps in Evolution