5 Animal Play: About the Tiger

The Five Animals Qigong (wuqinxi) is based on the Five Phase theory which is also a foundational theory for Chinese Medicine (TCM).
The Five Phases describe the cyclical tranformations of Yin and Yang using the icons of Wood, Fire, Earth, Metal and Water. The Tiger corresponds to the Wood phase which is maybe best summarized by it's association with Spring.
In the Spring plants like bamboo emerge from the ground. Described as delicate, their growth is rapid and insistent. In a similar manner the movements of the Tiger are soft but with strength.
The Wood Phase is also associated in TCM with the Liver Organ Network, which is in charge of ensuring a smooth flow of Qi throughout the body. To anchor this network, one of its meridians connects to the deepest levels of the body. This anchor counterbalances the rising nature of the Wood Phase. This network 'opens to the eyes governs the tendons and manifests in the nails'.
So the movements of the Tiger reflect these qualities of smooth, uninhibited movements that rise out of a solid root, travel through the tendons and extend to the nails and eyes.
The movement of Qi internally also generates emotions. Frustration is experienced when the Qi is blocked while anger shows up when stagnant Qi overheats and rushes upwards. On the other hand a lack of Qi in this network will show up as timidity. But when acting in a balanced manner, assertiveness and motivation are expressed in a positive and constructive manner.
So the movements of the Tiger reflects all of these qualities. And when practiced, support and harmonize all of the physical and mental aspects connected with the Wood Phase.