In Chinese philosophy, wood (), sometimes translated as Tree, is the growing of the matter, or the matter's growing stage. Wood is the first phase of Wu Xing when observing or discussing movement or growth. Wood is the lesser yang character of the Five elements, giving birth to Fire. It stands for springtime, the east, the planet Jupiter, the color green, windy weather, and the Azure Dragon (Qing Long) in Four Symbols. Blue and cyan-type colors also represent wood. In Chinese Taoist and Traditional Chinese medicine thought, Wood attributes are considered to be strength and flexibility, as with bamboo. It is also associated with qualities of warmth, generosity, co-operation and idealism. The Wood person will be expansive, outgoing and socially conscious and courageous so can become easily frustrated when confined of held back .The wood element is one that seeks ways to grow and expand. Wood heralds the beginning of life, dawn, springtime and buds, sensuality and fecundity. Wood needs moisture to thrive. In Chinese medicine, wood is associated with negative feelings of anger, hopelessness and positive feelings of optimism, courage, patience and altruism and the Virtue of benevelence (Ren 仁). The soul associated with wood is the Hun (魂). Organs associated with this element are the Zung organ the liver (yin), and the Fu organ the gall bladder (yang), the taste sour, the rancid smell also the eyes and tendons. In Chinese astrology, wood is included in the 10 heavenly stems (the five elements in their yin and yang forms), which combine with the 12 earthly branches (or Chinese signs of the zodiac), to form a 60 year cycle. Yang wood year (e.g. 1974). Yin wood year(e.g. 1975). Wood governs the Chinese zodiac signs Tiger and Rabbit. In the regenerative cycle of the Wu Xing, water engenders Wood, "as rain or dew makes plant life flourish"; Wood begets fire as "fire is generated by rubbing together two pieces of wood" and it must be fueled by burning wood. Since wood also represents wind, it also nourishes fire with the flow of oxygen.