Shoujin ryouri is the Japanese name for traditional Buddhist cuisine, only made of vegetables. Some may think that shoujin ryouri is a kind of vegan cuisine, but there is a significant difference.
When discussing the difference between vegan food and shoujin ryouri, first, we have to understand that cooking and eating shoujin ryouri are fundamental parts of Buddhist ascetic training. Food is shoujin ryouri if Buddhist monks consider it to be prepared according to the teachings of Buddhism. So it all depends on us whether or not our food is shoujin ryouri.
In Buddhist ascetic training, there are five basic and simplified manners for beginners when eating shoujin ryouri.
1) Sit upright with your back straight in front of the ozen, a small table-like tray.
2) Use chopsticks and hold dishes with both hands.
3) Put the chopsticks down properly on the ozen when chewing food.
4) Don't talk. Be fastidiously careful not to make any sound when you raise the chopsticks and plates up and setting them back down.
5) Clean dishes and bowls with either tea or water and pickles, drinking the water up.
Before eating shojin ryouri, we have to chant a Buddhist verse called Gokan-no-ge, which consists of the five following statements:
1) This meal that comes to me through many people's efforts and work.
2) I reflect on whether I am worthy of having this meal.
3) I remove from my mind any anger or strong desires.
4) I remind myself that food is the best medicine to prevent illness and weakness.
5) I take this meal as did the Buddha, who reached enlightenment.