Water is considered the elixir and source of life. Because it covers more than 70% of the Earth’s surface, makes up nearly 70% of our bodies, and constitutes over 70% of our hearts and brains, this deep connection I feel is actually a biological response that triggers a flood of neurochemicals to the brain. 
Just the sight and sound of the ocean can “promote wellness, increase blood flow to the brain and heart and induce relaxation.” Being immersed in ocean water or just in the presence of it can promote spiritual and physical energy balance as the current in the water actually act as restorative, relaxing, and soothing energy.