Learning Taiji (Tai Chi): The Old, Slow, and Weak Can Overcome the Young, Fast, and Strong 

A short video illustrating the saying from the Taiji (Tai Chi) classics that Taijiquan is not the fast hands beating the slow hands nor the young hands beating the old hands. You may be slow, but Taijiquan techniques are fast because your body moves as one integrated unit, left and right move together, Yin is not separate from Yang. You may be weaker than your assailant, but you do not try to overpower your assailant. Instead, you borrow you assailant's power by absorbing it, redirecting it, augmenting it with your own power, and returning it to attack the assailant.