Water symbolizes our emotions and nourishment. Water symbolizes our unconsciousness, deep subconsciousness, or desire or energy. Because water is often unpredictable and unpredictable, which is very much like our deep subconscious, also like our desire, also like our energy, psychological energy.
Water symbolizes mother and uterus. Because water is the source of life, it can symbolize the mother, the uterus, as well as gestation and growth. Water symbolizes purification, rebirth, treatment and transformation. If you can't understand this point, think of the water purification bottle in the hand of Avalokitesvara, which symbolizes healing, transformation, purification and rebirth.