Probably the most neglected function in modern life is extension–lifting the head to look up, reaching up to touch something overhead. We live in an environment carefully designed to obviate the need ever to do this. And every day we forget more and more what geniuses we were to be able to use our spines to lift a huge head with a tiny weak body.
This is a snow-day lesson posted slightly out of order! It’s based on Esalen 2: http://feldynotebook.wikispaces.com/Lifting+Head%2C+Legs%2C+Arms