Quintessence

"Quintessence" is meant to represent water as the quintessential element of all life. Without it life, as we know it, will simply cease to exist. We see the threat of the water shortage in its small impact on our yards and gardens. At a more profound level, its scarcity threatens the health and development of communities around the globe.   

Take a closer look. What appears to be a water droplet is a representation of an H2O molecule - an oxygen (O) atom with two hydrogen (H) atoms attached.