The fire was called the Sun or the Inner Sun which symbolized the inner search. The lion represents a lower part of man – the beast – which needs to be refined by the light of the Sun. The image of the Green Lion eating the Sun was used to denote this inner work. When the Green lion has taken the Sun into its being – then the inner process of transmutation is completed. The sequence of the work is the following: “Old Lion”, “Ordinary Lion”, “Red Lion”. The symbolism of the lion is derived from astrology. The Lion or Leo is ruled by the Sun, which rules the human heart.