The earth is like a ship That sails and never lands; All on deck obey Inaudible commands.
Life is born aboard, Rocked upon the waves, Then goes down the hull To be put in graves.
Max Kaufman asks us to picture the whole planet as a ship that never reaches port. Everyone aboard is busy, following orders, yet the commands are "inaudible." Nobody hears who gives them, and nobody can say where the ship is going. It's a quietly unsettling idea: we act as if someone is in charge, but we can't find the captain.
The second stanza is shorter on comfort still. Life begins on deck, rocked by waves like a baby in a cradle, which sounds gentle. Then the movement turns downward, "down the hull," and ends in graves. The ship image and the burial image blur together, so death starts to feel like just another part of the voyage.
The speaker stays calm and matter-of-fact, never raising his voice. That steadiness makes the mood cooler and stranger than outright despair: resigned, observant, a little haunted by how mysterious it all is.