What mood does Henry use of repetition in the tides rise fall help to create?

In the poem "The Tides Rise, the Tides Fall" by O. Henry, the use of repetition helps create a sense of monotony, routine, and inevitability. The poem repeatedly describes the rising and falling of the tides, which are natural phenomena that occur with predictable regularity. This repetition emphasizes the cyclical nature of life and suggests that certain events or patterns are beyond human control. The poem's tone is one of resignation and acceptance, as it acknowledges the relentless and unwavering force of time and the natural world.