用意不用力

All the steps are to be executed with complete mindfulness, in a very relaxed (放松）manner. It should go beyond paying attention to the physical body parts but feeling the 'etheric' or inner layer.

The etheric body, ether-body, æther body, or vital body is one of the subtle bodies in esoteric philosophies, in some religious teachings and in New Age thought. It is understood as a sort of life force body or aura that constitutes the "blueprint" of the physical body, and which sustains the physical body.

Instead of exerting physical strength, make use of the 意 (Yi) or 'mind intention' to direct the 气 (Qi) or life force that will ultimately issue the 劲 (Jing) or strength (energy that is capable of being forceful, but yet soft).

It is about practising the very fundamental principle of 用意不用力 (yong yi bu yong li) or 'make use of the mind intention and not physical strength'.