The waves bring so much to shore - tumbled glass, shells, dead fish and even the way you feel.
The sea has the ability to bring to surface what you try to drown, deep down inside. Probably a 70% human connection with water, makes the magic possible.
There must be a reason we don't have eyes at the back of our heads. Probably to ensure we look ahead at what's approaching than at what's gone further behind. Maybe also so we don't mutli-task but choose one direction...the way forward or regression into the past.