What is the title of the poem written by Walt Whitman that reflects on leadership and loss?

The poem "O Captain! My Captain!" by Walt Whitman is a poignant tribute that reflects on themes of leadership and loss. Written in the wake of President Abraham Lincoln's assassination, the poem uses the metaphor of a captain who has led his ship (the nation) to victory but has tragically died as they reach their destination. This symbolic representation underscores the deep sorrow and grief felt by the nation at the loss of its leader. Whitman employs both personal and universal elements, making the poem resonate broadly with anyone who has experienced loss. The imagery of the ship, the captain, and the celebration turned to mourning encapsulates the emotional turmoil associated with leadership and the impact of loss on a collective level, which is why this title is the most fitting in the context of the question posed.