We call this one the frog. This exercise is descriptive of the fairytale of the princess and the frog. When the princess kissed the frog, the frog was liberated from the spell and turned back to the handsome prince. Similarly when we are able to peel the spine of the ground vertebra by vertebra until the kneecaps touch the shoulders we have lifted the spell form our own spine and thus liberated ourselves from our own spell.
