Seiza is how to sit formal in Japanese.
It's sitting straight
For an unfamiliar person, this way is no means easy.Rather, it's a distress.
So why do Seiza?
The reason is related to the lifestyle of ancient Japanese.
In the housing of Japan,we must take off shoes.
Do not wear shoes on the tatami.→Tatami is...
And as you know, the old Japanese had all wear Kimono.
When we sit on tatami wearing a kimono,seiza is convenient to prevent the disordered kimono.
Many Japanese are no longer wearing a kimono in routinely.
However, there are many opportunities to Seiza in various scenes.
Seiza means that sit correctly.
People are contract the spirit by the Seiza during the funeral and formal place.
When remembering the deceased,we sitting Seiza with the feeling of respect and affection.
Seiza is not easy to stand up.Therefore,It is impossible to defense and attack to the opponent.
Seiza is how to sit docile and peaceful.
Seiza is the origin of physical and mental training in Japanese manners and martial arts.
Keep straight your posture,relax,breathing slowly.Gradually,ability to concentrate is increased, and your mind will be calm.
However,Seiza is be burden to the knee.Please do not put up with.
Also, keep a long time and legs are numb.
Many of the elderly in Japan has a habit of Seiza.
But they are bad knee.
So, in Japan,the special chair for the seiza are sold.
With this chair, do not burden your feet, your legs are not numb.