Japanese expression of Chi-shio, blood which runs like a sea water, implies the relationship between the blood and sea tide, as well as moon.
It has been said from the ancient times that sea tides and phases of the moon influence births and deaths of the living beings.
It implies that our lives depend on the water which exists in the universe. Separated by a thin skin, the water in the body receives the energy from the universe. Perspiration is a communication between inside and outside of the body influenced by the outside temperature.
Human blood and sea water is similar in terms of its constituents. This backs up the fact that the life was born in the sea water. Water is life itself.
