Defiance.
Oceans cross curving world by
throwing their tonnage
of ebb and fall while cliff-high
granite holds back floods
to bolster earth\'s yielding sides
 so safer feel folk 
when near coastline residing. 
Courageously yoked
against loud crashes and cries
of tide\'s pounding maw     
determined folk keep fighting
to tie boats on shore
with naught more than defiance