  As stated before (cf. 3.3), the human soul contains the principles (logoi) of all reality within itself. The soul carries, however, also sumbola or sunthêmata which correspond to the divine principles of reality. The same symbols also establish the secret correspondences between sensible things (stones, plants, and animals) and celestial and divine realities. Thanks to these symbols, things on different levels (stones, plants, animals, souls) are linked in a ‘chain’ (seira) to the divine principle on which they depend, as the chain of the sun and the many solar beings, or the chain of the moon. Of great importance in the rituals was also the evocation of the secret divine names. In his Commentary on the Cratylus, Proclus compares divine names to statues of the gods used in theurgy (In Crat. § 46), pointing to the fact that also language is an important means in the ascent to the divine.