Tai Chi Glossary > An (按)

An (按)

Definition: An (按) is one of the eight foundational methods of tai chi, a downward-and-forward pressing force applied with the palms that simultaneously addresses the opponent’s root and issues force through the center.

Of the four primary methods in Ba Fa —Peng, Lu, Ji, An—An is the one most likely to be mistaken for a simple push. It is not. Where a push drives horizontally forward, An first seals downward before issuing forward, disrupting the opponent’s root at the same moment force is applied. The distinction is subtle in appearance but decisive in effect: a push can be stepped away from; a well-executed An leaves nowhere to go.

Key points at a glance:

• An (按) translates literally as “to press” or “to push down”—the downward component is what distinguishes it from a simple forward push
• Applied with both palms, typically following Lu (roll back) or Ji (press) in the classic four-method push hands cycle
• Corresponds to the Li (离) trigram in the I Ching and the East direction in the Ba Fa framework
• Effective An requires Dan Tian initiation—palm-only An without whole-body connection is easily resisted
• Appears in virtually every tai chi style as part of Grasp Sparrow’s Tail (揽雀尾)

The Character and Its Logic

The character 按 (àn) appears throughout classical Chinese in contexts of pressing, holding down, and checking—a judge “按” a case to examine it; a musician “按” the strings. In martial application, this pressing-to-examine quality is meaningful: An does not simply drive an opponent backward but first reads and addresses their structure before issuing through it.

The classical instruction for An involves a two-phase action. The hands first move slightly downward and inward—an almost imperceptible compression that checks the opponent’s root and draws their weight forward—before the issuing phase drives forward and slightly upward through their center. Done correctly, the opponent’s own forward lean amplifies the effect of An rather than resisting it. Done as a simple horizontal push, a rooted opponent can absorb it without difficulty.

How An Works in Practice

In push hands , An typically appears as the fourth movement in the Peng-Lu-Ji-An cycle. After Ji (press) has been neutralized or has reached its limit, An follows as the closing method—palms turning to face forward and slightly downward, whole body sinking and then releasing through the arms.

The kua is central to effective An. The characteristic dropping quality that precedes the forward issue comes from the kua sinking rather than the hands pressing down. When the kua drops, the whole body’s weight transfers into the palms naturally; when only the arms press, the force is local and easily redirected. This is why zhan zhuang practice—which builds the ability to sink weight through the legs and kua—directly improves the quality of An.

In form practice, An appears most prominently at the conclusion of Grasp Sparrow’s Tail in Yang, Chen, Wu, and Sun styles alike. The palms face forward at chest height, the body sinks, and force issues through the entire structure. Even practiced solo without a partner, the intention of downward sealing followed by forward release should be present in every repetition.

What An Feels Like from the Receiving End

If you have only ever practiced An on a cooperative partner, you have not felt An yet. The first time someone with genuine An skill applies it to you, the sensation is distinctive: your structure does not get pushed backward so much as it gets absorbed downward. There is a moment where your root disappears—not from a sudden shock, but from a quiet pressure that finds exactly the wrong angle of your stance and waits there.

This is what separates trained An from an amateur push. An amateur push meets the strongest part of your structure. An, when done well, finds the structural fault line—the slight asymmetry in your stance, the hip that is carrying more weight than the other, the breath you are holding—and follows it. People who have only done push hands with classmates often develop the belief that An is easy to absorb. Then they visit a different school and meet someone who has really trained it, and they spend the rest of the session wondering why their root keeps disappearing.

Common Mistakes

The most common error in An is pressing down with the hands instead of sinking through the body. If a teacher tells you to “press” and you drop your shoulders and push your palms down, you have done the wrong thing. The pressing quality of An comes from the kua sinking, the weight dropping through the legs, and the palms simply being at the endpoint of that descent. Hands that press independently of the body signal An as clearly as a shout—an experienced partner will feel it coming before you start.

The second mistake is holding the forward issue too long. An is a release, not a sustained push. Once the opponent’s root has been disrupted and the force has expressed through the palms, the structure should reset immediately. Holding the forward pressure turns An into a wrestling match, which defeats its purpose. The classical instruction says “issue and withdraw”—the moment of contact is the moment of release, and the return to a neutral structure should happen as fast as the strike.

The third is neglecting the downward phase entirely, especially under pressure. When a push hands partner is actively pressing in, the natural instinct is to push back horizontally. That horizontal push is what they are expecting and ready to redirect. The downward sealing of An is counter-instinctual—it goes against the grain of the fight-or-flight response—which is precisely why it works. Training An until the downward phase becomes automatic is one of the more difficult and more rewarding investments in push hands development.

An in Relation to the Other Primary Methods

An is most naturally understood in relation to the method it follows—Ji (press)—and the method that follows it—Peng (ward off) as the cycle resets. Lu (roll back) yields and redirects; Ji closes and compresses; An seals and releases; Peng re-establishes the expansive, buoyant structure that begins the cycle again.

This four-method sequence is not merely a training drill. It encodes a complete tactical logic: receive (Lu), compress (Ji), uproot (An), re-establish (Peng). Understanding An’s place in this cycle clarifies why it is a sealing-and-issuing method rather than a simple push—it is the culminating release of a sequence, not a standalone technique.

• Ba Fa — the eight methods of which An is one of the four primary
• Grasp Sparrow’s Tail — the foundational sequence in which An appears
• Ji (擠) — the pressing method that typically precedes An in the four-method cycle
• Lu (捋) — the roll-back method that sets up the conditions for An
• Push Hands — the partner practice context in which An is trained
• Kua — the hip region whose sinking drives effective An
• Dan Tian — the initiating center for whole-body An
• Jing (劲) — the trained force quality expressed through An
• Eight Gates — the directional framework within which An operates
• Zhan Zhuang — standing practice that builds the sinking quality An requires

Have questions about An in practice? Our forum thread — [Masterclass] The Ultimate 62-Step Guide to Tai Chi’s 8 Methods & 5 Steps (Ba Fa Wu Bu) with Detailed Explanations — covers this and many more topics answered by experienced practitioners.