According to Martinus the purpose of the symbols is to "mark the absolute fundamentally leading principles and laws in the structure and manifestation of life or the universe. They constitute visible markings of intangible cosmic analysable realms, which in themselves are eternal and therefore exist outside time and space. ... The symbols are physical markings or indications for the invisible leading cosmic principles and laws of the universe." The Eternal World Picture I.
By creating these symbols with shapes, colors and lines, Martinus wanted to help the student of spiritual science to better understand the spiritual reality and the invisible cosmic laws that govern the universe.
The symbol introductions presented here have not been written by Martinus, but are based on his explanations in the books: The Eternal World Picture, Vol. I-IV and other parts of The Third Testament.