Yamabiko 山彦 echo of the mountain
In Iwama we learned of the notion of Yamabiko, the mountain echo, that refers to the natural response in the blending in Aikido. In the dojo we train this interaction. We "call out" and receive an answer. We initiate and blend with the response. Instead of waiting, for example, for a Shomen (frontal attack) (like in the old days or like in Daito Ryu) O Sensei changed it to become pro-active. So he would initiate the Shomen movement to bring out the response from the opponent. In this way we are able to stay with the opponent from early on, taking the initiative away from the attacker. This understanding is crucial in practicing awase, or blending in Aikido.
It is a natural response just as when you reach out to shake someone's hand, they respond in kind almost automatically. It is an inherent, pre-conscious reflex of the body. Someone smiles at you and you smile back. Someone puts a fist in your face and you pull back or raise your hands.
There's a wonderful secret in this that is deeply human and spiritual. It's all about a relationship and being alive to the world around us. Once we are keenly aware we'll be able to read the situation and respond or initiate appropriately. Once we're fully awake this will come naturally to us. A perfect response in any situation. The event lending itself to a match that completes and fulfills.
Yamabiko reflects the harmony of the world in detail. It is ultimately a deeply spiritual perspective and a perfect way to engage with others.