|Clip art: Clker|
Here is a website for a very slick consulting company, Thinkonyourfeet.com, that uses that moniker for its public speaking for professionals training program. It is worth book marking that page just for the outline of the skills involved in effective presentations!
Many cultures view "thought" as originating throughout the body. You have certainly seen the shiatsu charts of body parts maps on the feet, etc., or similar maps of related pressure vectors in various body manipulation systems. In HICP work we do teach at least one process "on our feet:" rhythm, part of the reason for that being the assumption that body rhythm is driven most effectively and dynamically by the lower body . . . just take it from Monika . . .