Why is the snail used as a symbol of Quetzalcoatl?
Answer from Master Samael Aun Weor.
Snails are related to seawater and water is the habitat of the fire of the Holy Spirit. So marine snails turn out to be the perfect incense of the Holy Spirit. The mother or Holy Spirit gives us powers and wisdom.
Samael Aun Weor. Excerpt from the book: The Greater Mysteries.
Response given on the magazine
The Wisdom of the Being, number 83.
By carrying it as a shield to protect yourself, that tells us that love is the best way to protect us from any danger: call it black magic, sorcery, bad wills, negative entities and everything that could harm us. Love is the most powerful force, there is nothing that can stop it. So, if anyone works with true love for humanity and cultivates that love for their children and partners, there will be no force in the entire universe that can penetrate that Quetzalcoatl shield or the wonderful force of love.
For that reason, the Quetzalcoatl Cultural Institute takes this ineffable symbol as a logo, it is like the flag of the ICQ Gnosis, that of spreading the knowledge of gnosis, the Wisdom of Quetzalcoatl to humanity, with true love, without distinctions of any kind, just for the very fact of feeling others as our true brothers, of feeling all of us as part of one being.
Excerpt from the ICQ's XXIII International Congress and the Magazine 83.