What is shibari? And why is it BDSM?

http://www.jasminejade.com/m-560-cerise-deland.aspx
TIE ME DOWN, my second in my KNIGHTS IN BLACK LEATHER series, stars Case Turner who is a shibari master.
And just what is shibari?
Shibari , an ancient Japanese art form developed from samurai warriors, is the act of tying someone up. But it is not simply using a rope, tying a few knots and calling it a day. It is an expressive art form, used by 16th and 17th century samurai who lived in a feudal society where constant warfare among clans was the norm.
The use of tying up captured samurai from other clans was practical. These Japanese warriors had no prisons and did not wish to build any. Warfare in this period was fast, bloody and decisive. This meant that a samurai, who was bound by a code called bushido (Way of the Warrior) must honor his prisoners according to their rank.
But how could a samurai do that with only rope as his medium?

Ah, come back tomorrow to learn!

In the meantime, tell us if you have ever tried shibari, as master or subject!
TIE ME DOWN follows the best seller #1 in the KNIGHTS IN BLACK LEATHER series, ROPE ME IN, a delicious a quatre! 3 men for one lady!
http://www.jasminejade.com/m-560-cerise-deland.aspx