The incorporated cities are Alameda, Albany, Berkeley, Dublin, Emeryville, Fremont, Hayward, Livermore, Newark, Oakland, Piedmont, Pleasanton, San Leandro, and Union City. The unincorporated communities are Ashland, Castro Valley, Cherryland, Fairview, San Lorenzo, and Sunol.
The tiger and dragon beautifully symbolize the yin yang (duality) of the universe. These two symbols of the male and female energies of chi energy have very specific meanings and can be used as feng shui cures as well as works of art.
But yin and yang are not static or just two separated things. The nature of yinyang lies in interchange and interplay of the two components. The alternation of day and night is such an example. In Chinese culture, Yin and Yang represent the two opposite principles in nature. Yin characterizes the feminine or negative nature of things and yang stands for the masculine or positive side. Yin and yang are in pairs, such as the moon and the sun, female and male, dark and bright, cold and hot, passive and active, etc. But yin and yang are not static or just two separated things. The nature of yinyang lies in interchange and interplay of the two components.