Salt plays a crucial role in maintaining human health. It is the main source of sodium and chloride ions in the human diet. Sodium is essential for nerve and muscle function and is involved in the regulation of fluids in the body. Sodium also plays a role in the body’s control of blood pressure and volume. (https://manoa.hawaii.edu/exploringourfluidearth/chemical/chemistry-and-seawater/salty-sea/weird-science-salt-essential-life)

Salt literally gives us life, and reminds us of the origins of all life in the primordial sea…. 

«Salt runs through our language, our history and our veins». (“Salt of the earth, we can’t live without it” by Steve Kemper; as seen in the January, 1999, issue of the Smithsonian magazine; pages 70-78.)
«Salt is so common, so easy to obtain, and so inexpensive that we have forgotten that from the beginning of civilization until about 100 years ago, salt was one of the most sought after commodities in human history.» (Mark Kurlansky, Salt, A World History)