“Although your abdomen is full and alive, there is no force being used. For the Qi to sink down to the Dan Tien slowly and naturally, the mind needs to be relaxed. By deeply relaxing while performing your Tai Chi movements, your Qi will move freely to every part of your body. This will benefit the body greatly.
“On the other hand, if you tense your mind and forcefully try to move your Qi, or use unnatural methods to circulate qi, it is more than likely that blockages will occur which are harmful to your health.”
-Tai Chi Classics