I like this metaphor in this verse of the dolphin Christ and it fits the image below well for reflection.
When the coast is left and we journey on
to the rim of the sky and the sea,
be the sailor’s friend, be the dolphin Christ
lead us in to eternity.
Lord, you were our beginning,
the faith that gave us birth.
We look to you, our ending,
our hope for heaven and earth.
Extract from a hymn by Colin Gibson