What is the central subject of the poem "To a waterfowl"?

The central subject of the poem "To a Waterfowl" is indeed focused on life lessons from nature. The poem, written by William Cullen Bryant, reflects on the relationship between the natural world and the human experience. Through the imagery of the waterfowl in flight, the poet captures themes of guidance and the journey of life.

The waterfowl symbolizes a creature that navigates its own path, suggesting that one can glean wisdom from observing nature's unfaltering rhythms and instincts. This exploration of nature leads to reflections on perseverance, faith, and the idea that a higher power guides both the bird and the individual on their respective journeys.

While existential themes and human emotions can be interpreted as undertones within the poem, the predominant focus revolves around the profound insights about life derived from the natural world, thus making the choice of life lessons from nature the most accurate representation of the poem's core subject.