The Ocean has always been a powerful metaphor for the spiritual. The ocean is often likened to the infinite being, all powerful, infinite and acting as a continuous one. As one wave after another crashed onto the shore slowly slowly chipping away at the mind represented by the shore and God as the infinite all powerful and conquering. Eventually all of the shore is returned to the ocean as it grinds away in its ever relentless fashion until shore and ocean become one.
In a contemporary fashion the book Spiritual Love Poems, by Pete Caswell plays on the ocean as a metaphor for the infinite being we all seek. Its poems seek to tease the infinite out from between the cracks in the mind to find the ocean as the infinite. Its a book of love trial and tribulations encountered along the road to the end and start of true love.
You can buy the book on Amazon. Search for the author Pete Caswell.