Theme 1: The Inevitability of Aging
Sonnet 73 frames aging as a gradual, unavoidable decline, using natural metaphors to make the abstract tangible. The speaker emphasizes how time erodes vitality, framing their own aging as a quiet, ongoing process rather than a sudden change. For essays, tie this theme to the sonnet's structure: each quatrain builds a new layer of aging imagery, reinforcing the idea that decline is inescapable.