When I use the word "Aiki" I am describing an ability to understand your attackers mind, physically blend with their physical movement, and letting your attackers spell their own demise. When I saw this video clip, it was a great example of what I would describe as Aiki. Enjoy!
http://www.youtube.com/watch?v=rroRNqBaF4w
Talk about awareness and a calm mind in the face of real danger- awesome!