Interpretation of this old concept in martial arts of Body, Mind, Spirit to our understanding:

FAITH, complete trust or confidence in someone or something; strong belief in God or in the doctrines based on spiritual apprehension rather than proof; "Blessed are thy that have not seen and yet they believe" John 20:29. It is a good practice to just know things will be ok, maybe not right now as you expected. Remember Faith overcomes Fear.

THOUGHT: an idea or opinion produced by thinking or occurring in the mind. A direction of one's mind. Mental attitude. In Martial Arts our thinking has to be clear and never having "too many minds"; a single mind is a clear perception of what is truth to the practitioner. The mind must be clear in order to control the body's actions. Correct and good decision making is key to success.

ACTION: physical and typically a process of doing something to achieve an aim. The way something is done. The mind or thought should control the physical action. Action without thought can be great but it can also be a disaster. Depending on its repetition. Mastery of movements can overcome the outcome.

In summary: is your faith in God can remain strong in stress, your thought will remain clear and you will make a good action. In conflict you will remain calm. Breathing will help create clarity in mind and body. It is important to pray and practice so you will act in accordance with the training you practice: Spirit/Faith, Mind/Thought, Body/Action.