There is a new Ashtanga website,Ashtanga Magazine, out and I am excited to see how it unfolds. David Garrigues just wrote an article for them about Asana being the first limb of Ashtanga yoga.
Asana can be thought of as the root limb that forms the foundation for all the other limbs. This is because working with your body in the postures puts you right in the center of the gritty details of what’s inside of you in a ‘hands on’, physical and practical way that circumvents the static habit patterns of the mind.
See the rest of the article here
Do you also feel that Asana is the first limb of Ashtanga yoga?