Tanden, Hara, Dantian

In Alexander Yanai Lesson 351 Dr. Feldenkrais refers quite extensively to the “Tandien”, and also in lesson 359. He also obliquely mentions it at the end of  AY 352. In the transcript of AY 351, Dr. Feldenkrais refers to the “tanden” as a Japanese word. What is this? see also: the Wikipedia article on “Hara”  https://en.wikipedia.org/wiki/Hara_(tanden)  […]