It seems that the tea ceremony in Japan was initially a Zen Buddhist monks dada. This ceremony called Chanoyu was to prepare green tea, then produced from a green powder (matcha), which was very valuable since it was also used for healing purposes. The monks made this particular moment a ritual which encouraged the peace and meditation. This rite ultimately results in the court of the Emperor when it was refined to excess by a master tea. The ceremony became an indispensable tradition in the heart of Japanese customs.
According to a strict order, the tea master must proceed with the preparation of the room for receiving guests. Cleanse using silk linen service which will include tea, heat the water to a specific temperature, pay water on the mixture and will bring in each bowl with bamboo whisk, a delicate foam the surface of the tea and will present an equal share of the drink to each guest with respect and humility. The guest will have to do its job by drinking tea with humility and respect in turn and make the bowl in the same position that we will have handed him. It even seems that, in some schools, the guest must, to the last sip, tilt the head back and run a sort of guttural complaint to express his appreciation of the tasting. Often at the end of the ceremony, the tea master presents the instruments he used to prepare the ritual indicates, by the same occasion, the name of the craftsmen who made them. The tea ceremony normally takes place in a modest house (cha-Shitu) and can be extended by 45 minutes up to several hours.
It is important to understand that if the tea ceremony varies due to several factors in its celebration (location of the tea pavilion, number of guests, the school which calls itself the master of tea, etc.) his spiritual nature, however, remains unchanged. During the tea ceremony is celebrated harmony, respect, purity and peace of mind. So a mystical experience which is well worth a few massage sessions…
(Reference from http://www.le-japon.com/)