Hard and Soft Qigong
'Hard' and 'soft', 'external' and 'internal', are arbitrary, figurative
terms. 'Hard' refers to techniques or force that are generally dynamic, straight
and visibly powerful; 'soft' to those that are generally graceful and circular,
and whose power is hidden. Karate, for instance, is hard, whereas judo is soft.

Master Yang demonstrating a hard Qigong form called Cumulating
'External' refers to force that is developed through obvious, visual
means like lifting weights and striking poles; 'internal' refers to force that
is developed through methods like channeling energy and visualization. A
kungfu saying explains this poetically: internal force is acquired through the
training of jing (essence), shen (mind), chi (energy); external force through
the training of jin (sinews), gu (bones), pi (muscles). Iron Palm, for example,
whose principal training method is jabbing the palm into granules and hitting it
on sandbags, is external; whereas Cosmos Palm, whose principal method is chi channeling
and visualization, is internal.
Master Yang demonstrating a soft Qigong meditative form