內三合：3 combinations inside

內家拳術強調"內三合與外三合"，所謂的內三合是內裡的功夫 ，指的是心與意合，意與氣合及氣與力合。 這裡粗淺的解說這三者分別是指什麼。
Internal Martial Art (for example: Taiji) emphasize that people need to check when practicing are "3 combinations inside and 3 combinations outside". The "3 combinations inside" check 3 different ways.
1st is to keep the Mind follow the Consciousness.
2nd is to keep the Consciousness follow the Chi.
3rd is to keep the Chi match with the Energy.

心與意合，心是指心裡所想的思想，意是指控制身上的意念，心與意合，白話來說，就是心裡所想的和身上的動作是吻合的。 這需要透過長時間的練習才能讓人想的和做的一致。
To keep the Mind follow the Consciousness.
Mind means what people thought. Consciousness point to the opinion which control our body movement. Simply say, what we thought should match what we do (movement). That will take time to practice.

Do not think other things when we do something. For example, do not consider anything excluded walking when you are walking. Jusk think about what we are doing now.

意與氣合，如同上段所說的，意念控制我們的身體，而這裡意念又引申去指被意念所指揮的身體動作，氣則是指我們練習拳術所使用的呼吸，簡言之，就是動作要和呼吸配合。
To keep the Consciousness follow the Chi. The consciousness here means not only opinions which control our bodies but also the body movements. Chi means the special way we breath when we practice Taichi. The whole thing just point out we need to keep our movement follow and match the breath.

氣與力合，其中力是指我們宗岳門特指的正力，呼吸引導出的動作要位在能發揮出正力的軌跡上。
To keep Chi match with the Energy.
The energy means the special position in which our body movement can gain the maximum energy (force). The movment which was lead by breath need to follow the special force track to produce the maxium energy (force).

整體而言，內三合就是一個身體動作運行的指導原則，心裡想的要和做的配合，動作又要配合呼吸而動，呼吸帶動的動作軌跡又要在能發揮出結構力的狀態。
In generally speaking, 3 combinations inside is a guildline of body movement. What we think need to match what we do, and what we do need to match the breath; the breath conduct the movement must follow the special move track to produce the power, energy, force.