I needed a vegetable side dish to go with my twice-cooked tofu. In China, it is a very poor household indeed that has only one dish to go with their rice. Variety is the spice of life and the Chinese take their food very seriously. Like the French, if they are not eating, they are talking about food or thinking about food.
To make a change from what I made to go with the twice-cooked pork, I used celery as the foil to the giant bamboo in my side dish.