In 1997 Master Wang Yen-nien held a advanced training seminar in Taipei Taiwan.  My Tai Chi Chuan school sponsored me to go.  It was three and a half weeks of training eight hours a day in Tai Chi form, sword, fighting applications, and push hands.  Practice started at 6am and finished around 8:30pm.  This is Dante doing push hands with Luc Defago.  Luc is one of Master Wang's senior students from France.  Check out how sweaty Luc is.  I'm equally sweaty, but it just doesn't show up in the picture.  Taiwan is fairly humid.  That was an amazing experience.