Aloha All,
AgentB: I believe Manjusri was talking about bent knees throughout all the exercises, but primarily during the harvesting of chi.
Thank you for reminding us about the option to leave the feet on the ground during the seven steps. Sometimes he teaches the exercise without the lifting of the legs for those reasons in level one classes.
Another benefit from lifting the legs on that exercise is that the extension and flexion happening in the feet open and close specific channels.
FYI: It's Lin, -that's ok though, I was referred to as a she on the forum for a while 
Much Love, Shawn
[This message has been edited by Shawn_Grim (edited October 16, 2003).]