2 pieces of evidence in kamikaze?
"Figure of eight"=symbol for infinity, used to imply the eternal nature of nature and that nature is superior to humanity. Also, it shows how war and honour will be forgotten but nature will remain.
"A tuna, the dark prince, muscular"=shows the imbalance of power between nature and humanity. Also, the fact that the most dangerous thing is a fish shows how even the kamikaze pilots - the epitome of bravery - sense danger.