The Japanese see the bath as a place to soak away the day's fatigue. The bathroom has both a tub and a washing space beside it. You wash before getting into the tub and the whole family uses the same bathwater without emptying and refilling it. The water is kept warm for the next person by putting a lid on the tub. All sorts of things go in with the water. On May 5th, Children's Day, iris leaves are added to the bathwater as a prayer for the children's healthy growth. On the winter solstice, whole yuzu citrons float in the tub. There is an old saying that there is nothing like a yuzu bath to warm you up in winter.