This poem is an attempt by Oliver to inspire people to be true to themselves and nature rather than run a never-ending race to be perfect for people. And that “you” are not alone with a life full of despair. There are millions, and you will definitely find someone to share it with. You just need some patience. This is also and attempts by the poet to promote human connectivity.
Victories come with a price. Here the ship may have successfully sailed through all the perils towards the victory, but the Captain is no longer alive to taste it. The captain, here, in this poem, refers to the late president of USA, Abraham Lincoln. The poem is written with reference to American Civil War of 1861-65.