Teth - The Serpent 419
Teth - Serpent, fiery, Leo, suggestion, intelligence of the secret of all spiritual activities, taste, digestion, taming the animal nature
Yod - Open hand, earthy, Virgo, response, intelligence of Will, touch, coition
Tav - Mark, signature, lead, Saturn, Cosmic consciousness, administrative intelligence, dominion and slavery

Snakes are a symbol of the life-force, of sexuality, of desire. Cabalists say that he desire force is what we use for all achievement. It is to be nourished and directed. The ferocious lion in Key 8 is the body that we inhabit. Direct it well through suggestion.

"Through the fire of will, we make our mark."
"Discipline your body and tame its urges through careful self-suggestion. Then the One Will will touch you and bring you into dominion over your life."

Cobra Sea Snake in Eilat, Israel